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‎datetime.kt‎

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import java.time.*
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import java.time.format.DateTimeFormatter
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import java.util.*
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object datetime {
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@JvmStatic
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fun main(args: Array<String>) {
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Scanner(System.`in`).use { sc ->
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val year: Int
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val month: Int
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val day: Int
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val hour: Int
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val minute: Int
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val second: Int
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val millisecond: Int
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val microsecond: Int
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val nanosecond: Int //initialize date and time variables
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val era1 =
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DateTimeFormatter.ofPattern("GGG") // Format the date and time values with a specified pattern for all supported formats
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val era2 = DateTimeFormatter.ofPattern("GGGG")
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val era3 = DateTimeFormatter.ofPattern("GGGGG")
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val year1 = DateTimeFormatter.ofPattern("uu")
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val year2 = DateTimeFormatter.ofPattern("uuuu")
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val yearEra = DateTimeFormatter.ofPattern("yy")
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val yearEra2 = DateTimeFormatter.ofPattern("yyyy")
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val dayOfYear = DateTimeFormatter.ofPattern("D")
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val monthOfYear = DateTimeFormatter.ofPattern("M")
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val monthOfYear2 = DateTimeFormatter.ofPattern("MMM")
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val monthOfYear3 = DateTimeFormatter.ofPattern("MMMM")
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val monthOfYear4 = DateTimeFormatter.ofPattern("MMMMM")
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val dayOfMonth = DateTimeFormatter.ofPattern("d")
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val quarter = DateTimeFormatter.ofPattern("q")
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val quarter2 = DateTimeFormatter.ofPattern("qqq")
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val quarter3 = DateTimeFormatter.ofPattern("qqqq")
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val weekBasedYear = DateTimeFormatter.ofPattern("YY")
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val weekBasedYear2 = DateTimeFormatter.ofPattern("YYYY")
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val weekOfYear = DateTimeFormatter.ofPattern("w")
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val weekOfMonth = DateTimeFormatter.ofPattern("W")
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val dayOfWeek = DateTimeFormatter.ofPattern("E")
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val dayOfWeek2 = DateTimeFormatter.ofPattern("EEEE")
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val dayOfWeek3 = DateTimeFormatter.ofPattern("EEEEE")
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val localDayOfWeek = DateTimeFormatter.ofPattern("e")
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val localDayOfWeek2 = DateTimeFormatter.ofPattern("eee")
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val localDayOfWeek3 = DateTimeFormatter.ofPattern("eeee")
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val localDayOfWeek4 = DateTimeFormatter.ofPattern("eeeee")
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val localWeekOfMonth = DateTimeFormatter.ofPattern("F")
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val amPm = DateTimeFormatter.ofPattern("a")
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val hour12 = DateTimeFormatter.ofPattern("h")
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val hour0To11 = DateTimeFormatter.ofPattern("K")
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val hour24 = DateTimeFormatter.ofPattern("k")
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val hourOfDay = DateTimeFormatter.ofPattern("H")
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val minute1 = DateTimeFormatter.ofPattern("m")
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val second1 = DateTimeFormatter.ofPattern("s")
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val fractionOfSecond = DateTimeFormatter.ofPattern("SSSSSSSSS")
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val millisecondOfDay = DateTimeFormatter.ofPattern("A")
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val nanosecondOfSecond = DateTimeFormatter.ofPattern("n")
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val nanosecondOfDay = DateTimeFormatter.ofPattern("N")
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val timezoneId = DateTimeFormatter.ofPattern("VV")
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val timezoneName = DateTimeFormatter.ofPattern("z")
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val timezoneName2 = DateTimeFormatter.ofPattern("zzzz")
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val timezoneOffset = DateTimeFormatter.ofPattern("OOOO")
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val timezoneOffsetZ = DateTimeFormatter.ofPattern("XXXXX")
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val timezoneOffsetX = DateTimeFormatter.ofPattern("xxxxx")
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val timezoneOffset2 = DateTimeFormatter.ofPattern("ZZZZZ")
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val timezoneOffsetZ1 = DateTimeFormatter.ofPattern("ZZZZ")
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try { //make sure date and time input is a valid integer
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print("Year: ")
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year = sc.nextInt()
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print("Month: ")
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month = sc.nextInt() // 1 is January
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print("Day: ")
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day = sc.nextInt()
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print("Hour: ")
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hour = sc.nextInt()
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print("Minute: ")
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minute = sc.nextInt()
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print("Second: ")
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second = sc.nextInt()
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print("Millisecond: ")
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millisecond = sc.nextInt()
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print("Microsecond: ")
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microsecond = sc.nextInt()
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print("Nanosecond: ")
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nanosecond = sc.nextInt()
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val enteredDateAndTime = LocalDateTime.of(year, month, day, hour, minute, second)
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.withNano(millisecond * 1000000 + microsecond * 1000 + nanosecond) // Convert datetime of GregorianCalendar object to LocalDateTime object named enteredDateAndTime without a time zone and set nanoseconds to 1,000,000 (1 million) * milliseconds + 1,000 (1 thousand) * microseconds + nanoseconds
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val enteredDateAndTimeTimezone = ZonedDateTime.of(
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enteredDateAndTime,
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ZoneId.systemDefault()
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) // Get time zone of entered date and time values
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// Print the entered date and time values in all supported formats
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println("\nEntered Date and Time Values:\n")
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println(
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"Era: " + era1.format(enteredDateAndTime) + " (" + era2.format(enteredDateAndTime) + ")" + " (" + era3.format(
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enteredDateAndTime
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) + ")"
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) // Print the date and time values with formatted date and time pattern
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println("Year: " + year1.format(enteredDateAndTime) + " (" + year2.format(enteredDateAndTime) + ")")
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println("Era Year: " + yearEra.format(enteredDateAndTime) + " (" + yearEra2.format(enteredDateAndTime) + ")")
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println("Day of Year: " + dayOfYear.format(enteredDateAndTime))
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println(
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"Month of Year: " + monthOfYear.format(enteredDateAndTime) + " (" + monthOfYear2.format(
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enteredDateAndTime
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) + ")" + " (" + monthOfYear3.format(enteredDateAndTime) + ")" + " (" + monthOfYear4.format(
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enteredDateAndTime
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) + ")"
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)
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println("Day of Month: " + dayOfMonth.format(enteredDateAndTime))
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println(
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"Quarter: " + quarter.format(enteredDateAndTime) + " (" + quarter2.format(enteredDateAndTime) + ")" + " (" + quarter3.format(
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enteredDateAndTime
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) + ")"
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)
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println(
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"ISO Week-based Year: " + weekBasedYear.format(enteredDateAndTime) + " (" + weekBasedYear2.format(
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enteredDateAndTime
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) + ")"
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)
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println("Week of Year: " + weekOfYear.format(enteredDateAndTime))
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println("Week of Month: " + weekOfMonth.format(enteredDateAndTime))
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println(
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"Day of Week: " + dayOfWeek.format(enteredDateAndTime) + " (" + dayOfWeek2.format(
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enteredDateAndTime
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) + ")" + " (" + dayOfWeek3.format(enteredDateAndTime) + ")"
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)
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println(
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"Local Day of Week: " + localDayOfWeek.format(enteredDateAndTime) + " (" + localDayOfWeek2.format(
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enteredDateAndTime
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) + ")" + " (" + localDayOfWeek3.format(enteredDateAndTime) + ")" + " (" + localDayOfWeek4.format(
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enteredDateAndTime
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) + ")"
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)
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println("Local Week of Month: " + localWeekOfMonth.format(enteredDateAndTime))
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println("AM/PM: " + amPm.format(enteredDateAndTime))
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println("12 Hour Format " + hour12.format(enteredDateAndTime))
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println("0-11 Hour Format: " + hour0To11.format(enteredDateAndTime))
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println("24 Hour Format: " + hour24.format(enteredDateAndTime))
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println("Hour of Day: " + hourOfDay.format(enteredDateAndTime))
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println("Minute: " + minute1.format(enteredDateAndTime))
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println("Second: " + second1.format(enteredDateAndTime))
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println("Fraction of Second: " + fractionOfSecond.format(enteredDateAndTime))
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println("Millisecond of Day: " + millisecondOfDay.format(enteredDateAndTime))
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println("Nanosecond: " + nanosecondOfSecond.format(enteredDateAndTime))
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println("Nanosecond of Day: " + nanosecondOfDay.format(enteredDateAndTime))
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println("Time Zone ID: " + timezoneId.format(enteredDateAndTimeTimezone))
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println(
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"Time Zone: " + timezoneName2.format(enteredDateAndTimeTimezone) + " (" + timezoneName.format(
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enteredDateAndTimeTimezone
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) + ")"
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)
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println(
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"Localized Time Zone Offset: " + timezoneOffset.format(enteredDateAndTimeTimezone) + " (" + timezoneOffset2.format(
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enteredDateAndTimeTimezone
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) + ")"
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)
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println(
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"Time Zone Offset: " + timezoneOffsetZ.format(enteredDateAndTimeTimezone) + " (" + timezoneOffsetX.format(
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enteredDateAndTimeTimezone
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) + ")" + " (" + timezoneOffsetZ1.format(enteredDateAndTimeTimezone) + ")"
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)
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println("\nCurrent Date and Time Values:\n")
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} catch (ex: InputMismatchException) { //if entered, date and time values are in the wrong format (not a valid integer)
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println("\nInvalid date and time input.\nPrinting current date and time.\n") //print the error
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}
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// Print the current date and time values in all supported formats
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val dateAndTimeNow =
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ZonedDateTime.now() // Get the current date and time based on local computer date and time with local time zone
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println(
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"Current Era: " + era1.format(dateAndTimeNow) + " (" + era2.format(dateAndTimeNow) + ")" + " (" + era3.format(
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dateAndTimeNow
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) + ")"
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) // Print the formatted date and time values in current local date and time
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println("Current Year: " + year1.format(dateAndTimeNow) + " (" + year2.format(dateAndTimeNow) + ")")
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println("Current Era Year: " + yearEra.format(dateAndTimeNow) + " (" + yearEra2.format(dateAndTimeNow) + ")")
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println("Current Day of Year: " + dayOfYear.format(dateAndTimeNow))
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println(
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"Current Month of Year: " + monthOfYear.format(dateAndTimeNow) + " (" + monthOfYear2.format(
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dateAndTimeNow
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) + ")" + " (" + monthOfYear3.format(dateAndTimeNow) + ")" + " (" + monthOfYear4.format(dateAndTimeNow) + ")"
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)
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println("Current Day of Month: " + dayOfMonth.format(dateAndTimeNow))
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println(
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"Current Quarter: " + quarter.format(dateAndTimeNow) + " (" + quarter2.format(dateAndTimeNow) + ")" + " (" + quarter3.format(
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dateAndTimeNow
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) + ")"
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)
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println(
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"Current ISO Week-based Year: " + weekBasedYear.format(dateAndTimeNow) + " (" + weekBasedYear2.format(
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dateAndTimeNow
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) + ")"
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)
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println("Current Week of Year: " + weekOfYear.format(dateAndTimeNow))
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println("Current Week of Month: " + weekOfMonth.format(dateAndTimeNow))
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println(
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"Current Day of Week: " + dayOfWeek.format(dateAndTimeNow) + " (" + dayOfWeek2.format(dateAndTimeNow) + ")" + " (" + dayOfWeek3.format(
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dateAndTimeNow
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) + ")"
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)
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println(
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"Current Local Day of Week: " + localDayOfWeek.format(dateAndTimeNow) + " (" + localDayOfWeek2.format(
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dateAndTimeNow
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) + ")" + " (" + localDayOfWeek3.format(dateAndTimeNow) + ")" + " (" + localDayOfWeek4.format(
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dateAndTimeNow
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) + ")"
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)
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println("Current Local Week of Month: " + localWeekOfMonth.format(dateAndTimeNow))
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println("Current AM/PM: " + amPm.format(dateAndTimeNow))
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println("Current 12 Hour Format " + hour12.format(dateAndTimeNow))
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println("Current 0-11 Hour Format: " + hour0To11.format(dateAndTimeNow))
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println("Current 24 Hour Format: " + hour24.format(dateAndTimeNow))
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println("Current Hour of Day: " + hourOfDay.format(dateAndTimeNow))
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println("Current Minute: " + minute1.format(dateAndTimeNow))
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println("Current Second: " + second1.format(dateAndTimeNow))
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println("Current Fraction of Second: " + fractionOfSecond.format(dateAndTimeNow))
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println("Current Millisecond of Day: " + millisecondOfDay.format(dateAndTimeNow))
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println("Current Nanosecond: " + nanosecondOfSecond.format(dateAndTimeNow))
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println("Current Nanosecond of Day: " + nanosecondOfDay.format(dateAndTimeNow))
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println("Current Time Zone ID: " + timezoneId.format(dateAndTimeNow))
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println(
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"Current Time Zone: " + timezoneName2.format(dateAndTimeNow) + " (" + timezoneName.format(
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dateAndTimeNow
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) + ")"
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)
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println(
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"Current Localized Time Zone Offset: " + timezoneOffset.format(dateAndTimeNow) + " (" + timezoneOffset2.format(
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dateAndTimeNow
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) + ")"
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)
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println(
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"Current Time Zone Offset: " + timezoneOffsetZ.format(dateAndTimeNow) + " (" + timezoneOffsetX.format(
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dateAndTimeNow
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) + ")" + " (" + timezoneOffsetZ1.format(dateAndTimeNow) + ")"
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)
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val currentUtcDateAndTime = Instant.now() // Get the current UTC date and time using an Instant object
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val utcDateAndTimeNow = LocalDateTime.ofInstant(
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currentUtcDateAndTime,
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ZoneOffset.UTC
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) // Convert from an Instant object to LocalDateTime object
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println(
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"Current UTC Era: " + era1.format(utcDateAndTimeNow) + " (" + era2.format(utcDateAndTimeNow) + ")" + " (" + era3.format(
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utcDateAndTimeNow
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) + ")"
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) // Print the formatted date and time values in current local date and time
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println("Current UTC Year: " + year1.format(utcDateAndTimeNow) + " (" + year2.format(utcDateAndTimeNow) + ")")
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println(
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"Current UTC Era Year: " + yearEra.format(utcDateAndTimeNow) + " (" + yearEra2.format(
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utcDateAndTimeNow
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) + ")"
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)
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println("Current UTC Day of Year: " + dayOfYear.format(utcDateAndTimeNow))
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println(
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"Current UTC Month of Year: " + monthOfYear.format(utcDateAndTimeNow) + " (" + monthOfYear2.format(
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utcDateAndTimeNow
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) + ")" + " (" + monthOfYear3.format(utcDateAndTimeNow) + ")" + " (" + monthOfYear4.format(
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utcDateAndTimeNow
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) + ")"
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)
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println("Current UTC Day of Month: " + dayOfMonth.format(utcDateAndTimeNow))
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println(
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"Current UTC Quarter: " + quarter.format(utcDateAndTimeNow) + " (" + quarter2.format(
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utcDateAndTimeNow
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) + ")" + " (" + quarter3.format(utcDateAndTimeNow) + ")"
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)
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println(
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"Current UTC ISO Week-based Year: " + weekBasedYear.format(utcDateAndTimeNow) + " (" + weekBasedYear2.format(
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utcDateAndTimeNow
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) + ")"
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)
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println("Current UTC Week of Year: " + weekOfYear.format(utcDateAndTimeNow))
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println("Current UTC Week of Month: " + weekOfMonth.format(utcDateAndTimeNow))
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println(
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"Current UTC Day of Week: " + dayOfWeek.format(utcDateAndTimeNow) + " (" + dayOfWeek2.format(
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utcDateAndTimeNow
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) + ")" + " (" + dayOfWeek3.format(utcDateAndTimeNow) + ")"
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)
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println(
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"Current UTC Local Day of Week: " + localDayOfWeek.format(utcDateAndTimeNow) + " (" + localDayOfWeek2.format(
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utcDateAndTimeNow
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) + ")" + " (" + localDayOfWeek3.format(utcDateAndTimeNow) + ")" + " (" + localDayOfWeek4.format(
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utcDateAndTimeNow
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) + ")"
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)
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println("Current UTC Local Week of Month: " + localWeekOfMonth.format(utcDateAndTimeNow))
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println("Current UTC AM/PM: " + amPm.format(utcDateAndTimeNow))
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println("Current UTC 12 Hour Format " + hour12.format(utcDateAndTimeNow))
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println("Current UTC 0-11 Hour Format: " + hour0To11.format(utcDateAndTimeNow))
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println("Current UTC 24 Hour Format: " + hour24.format(utcDateAndTimeNow))
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println("Current UTC Hour of Day: " + hourOfDay.format(utcDateAndTimeNow))
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println("Current UTC Minute: " + minute1.format(utcDateAndTimeNow))
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println("Current UTC Second: " + second1.format(utcDateAndTimeNow))
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println("Current UTC Fraction of Second: " + fractionOfSecond.format(utcDateAndTimeNow))
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println("Current UTC Millisecond of Day: " + millisecondOfDay.format(utcDateAndTimeNow))
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println("Current UTC Nanosecond: " + nanosecondOfSecond.format(utcDateAndTimeNow))
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println("Current UTC Nanosecond of Day: " + nanosecondOfDay.format(utcDateAndTimeNow))
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}
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}
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}

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