Supported date and time formats

Time duration

This format is used to express a time duration in the Kerberos configuration files and user commands. The allowed formats are:

Format	Example	Value
h:m[:s]	36:00	36 hours
NdNhNmNs	8h30s	8 hours 30 seconds
N (number of seconds)	3600	1 hour

Here N denotes a number, d - days, h - hours, m - minutes, s - seconds.

Note

The time interval should not exceed 2147483647 seconds.

Examples:

Request a ticket valid for one hour, five hours, 30 minutes
and 10 days respectively:

  kinit -l 3600
  kinit -l 5:00
  kinit -l 30m
  kinit -l "10d 0h 0m 0s"

getdate time

Some of the kadmin and kdb5_util commands take a date-time in a human-readable format. Some of the acceptable date-time strings are:

	Format	Example
Date	mm/dd/yy	07/27/12
	month dd, yyyy	Jul 27, 2012
	yyyy-mm-dd	2012-07-27
Absolute time	HH:mm[:ss]pp	08:30 PM
	hh:mm[:ss]	20:30
Relative time	N tt	30 sec
Time zone	Z	EST
	z	-0400

(See Abbreviations used in this document.)

Examples:

Create a principal that expires on the date indicated:
    addprinc test1 -expire "3/27/12 10:00:07 EST"
    addprinc test2 -expire "January 23, 2015 10:05pm"
    addprinc test3 -expire "22:00 GMT"
Add a principal that will expire in 30 minutes:
    addprinc test4 -expire "30 minutes"

Absolute time

This rarely used date-time format can be noted in one of the following ways:

Format	Example	Value
yyyymmddhhmmss	20141231235900	One minute before 2015
yyyy.mm.dd.hh.mm.ss	2014.12.31.23.59.00
yymmddhhmmss	141231235900
yy.mm.dd.hh.mm.ss	14.12.31.23.59.00
dd-month-yyyy:hh:mm:ss	31-Dec-2014:23:59:00
hh:mm:ss	20:00:00	8 o’clock in the evening
hhmmss	200000

(See Abbreviations used in this document.)

Example:

Set the default expiration date to July 27, 2012 at 20:30
default_principal_expiration = 20120727203000

Abbreviations used in this document

month : locale’s month name or its abbreviation;

dd : day of month (01-31);

HH : hours (00-12);

hh : hours (00-23);

mm : in time - minutes (00-59); in date - month (01-12);

N : number;

pp : AM or PM;

ss : seconds (00-60);

tt : time units (hours, minutes, min, seconds, sec);

yyyy : year;

yy : last two digits of the year;

Z : alphabetic time zone abbreviation;

z : numeric time zone;

Note

• If the date specification contains spaces, you may need to enclose it in double quotes;
• All keywords are case-insensitive.