Package jmri.util

Class DateUtil

java.lang.Object

jmri.util.DateUtil

public class DateUtil
extends Object

Common utility methods for working with Calendar and Date objects.

Method Summary

Modifier and Type	Method	Description
static GregorianCalendar	calFromJulianDate(long julianDay)	Return a GregorianCalendar representation of the given julian date.
static long	julianDayFromCalendar(GregorianCalendar cal)	Return a julian date representation of the given GregorianCalendar date.
static String	userDurationFromSeconds(int seconds)	For a given number of seconds, format to a more human readable form.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

calFromJulianDate

public static GregorianCalendar calFromJulianDate(long julianDay)

Return a GregorianCalendar representation of the given julian date. For reference, see: http://aa.usno.navy.mil/faq/docs/JD_Formula.php

Parameters:

julianDay - number of days since January 1,4713BC.

Returns:

GregorianCalendar representation of julianDay

julianDayFromCalendar

public static long julianDayFromCalendar(GregorianCalendar cal)

Return a julian date representation of the given GregorianCalendar date. for reference, see: http://aa.usno.navy.mil/faq/docs/JD_Formula.php

Parameters:

cal - the GregorianCalendar to convert.

Returns:

julianDate representation of the date represented by cal.

userDurationFromSeconds

public static String userDurationFromSeconds(int seconds)

For a given number of seconds, format to a more human readable form. Negative durations are prepended by the minus symbol. For durations less than 24hrs, the day integer is omitted.

Parameters:

seconds - the number of seconds

Returns:

string representation of duration in D hh:mm:ss form.