net.datenwerke.rs.utils.misc

Class DateUtils

java.lang.Object

net.datenwerke.rs.utils.misc.DateUtils

public class DateUtils
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static long	EPOCH_UNIX_ERA_DAY Value to add to the day number returned by this calendar to find the Julian Day number.
static long	MILLISECS_PER_HOUR Number of milliseconds per hour, except when a leap second is inserted.
static long	MILLISECS_PER_MINUTE All minutes have this many milliseconds except the last minute of the day on a day defined with a leap second.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	formatCurrentDate()
static java.lang.String	formatDate(java.util.Date date, java.lang.String format)
static int	getDeltaDays(java.util.Date d1, java.util.Date d2)
static long	getJulianDay(java.util.Calendar date)
static long	getUnixDay(java.util.Calendar date)
static java.util.Date	trimDateInformation(java.util.Date date)
static java.util.Date	trimSecondsAndMillis(java.util.Date date)
static java.util.Date	trimTimeInformation(java.util.Date date)

Methods inherited from class java.lang.Object

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

Field Detail

MILLISECS_PER_MINUTE

public static final long MILLISECS_PER_MINUTE

All minutes have this many milliseconds except the last minute of the day on a day defined with a leap second.

See Also:

Constant Field Values

MILLISECS_PER_HOUR

public static final long MILLISECS_PER_HOUR

Number of milliseconds per hour, except when a leap second is inserted.

See Also:

Constant Field Values

EPOCH_UNIX_ERA_DAY

public static final long EPOCH_UNIX_ERA_DAY

Value to add to the day number returned by this calendar to find the Julian Day number. This is the Julian Day number for 1/1/1970. Note: Since the unix Day number is the same from local midnight to local midnight adding JULIAN_DAY_OFFSET to that value results in the chronologist, historians, or calenderists Julian Day number. Refer to http://www.hermetic.ch/cal_stud/jdn.htm

See Also:

Constant Field Values

Method Detail

getUnixDay

public static long getUnixDay(java.util.Calendar date)

Returns:

Day number where day 0 is 1/1/1970, as per the Unix/Java date/time epoch.

getJulianDay

public static long getJulianDay(java.util.Calendar date)

Returns:

LOCAL Chronologists Julian day number each day starting from midnight LOCAL TIME. Refer to http://tycho.usno.navy.mil/mjd.html for more information about local C-JDN

getDeltaDays

public static int getDeltaDays(java.util.Date d1,
                               java.util.Date d2)

Parameters:

d1 -

d2 -

Returns:

d2 - d1

formatDate

public static java.lang.String formatDate(java.util.Date date,
                                          java.lang.String format)

trimSecondsAndMillis

public static java.util.Date trimSecondsAndMillis(java.util.Date date)

trimTimeInformation

public static java.util.Date trimTimeInformation(java.util.Date date)

trimDateInformation

public static java.util.Date trimDateInformation(java.util.Date date)

formatCurrentDate

public static java.lang.String formatCurrentDate()