Manual page for DATE(1V)
date - display or set the date
SYNOPSIS
date
[
-u
]
[
-a
[
-
]
sss.fff
]
[
yymmddhhmm
[
.ss
] ]
[
+format
]
SYSTEM V SYNOPSIS
/usr/5bin/date
[
-u
]
[
-a
[
-
]
sss.fff
]
[
mmddhhmm
[
yy
] ]
[
+format
]
AVAILABILITY
The System V version of this command is available with the
System V
software installation option. Refer to
[a manual with the abbreviation INSTALL]
for information on how to install optional software.
DESCRIPTION
If no argument is given, or if the argument begins with
+,
date
displays the current date and time.
Otherwise, the current date is set.
Only the super-user may
set
the date.
yy
is the last two digits of the year; the first
mm
is the month number;
dd
is the day number in the month;
hh
is the hour number (24 hour system);
the second
mm
is the minute number;
.ss
(optional) specifies seconds.
The year, month and day may be omitted; the
current values are supplied as defaults.
If the argument begins with
+,
the output of
date
is under the control of the user.
The format for the output is similar to that of
the first argument to
printf.3v
All output fields are of fixed size (zero padded
if necessary).
Each field descriptor is preceded by
%
and will be replaced in the output by
its corresponding value.
A single
%
is encoded by
%%.
All other
characters are copied to the output without change.
The string is always terminated with a new-line character.
Field Descriptors:
-
- n
-
insert a new-line character
- t
-
insert a tab character
- m
-
month of year - 01 to 12
- d
-
day of month - 01 to 31
- y
-
last 2 digits of year - 00 to 99
- D
-
date as mm/dd/yy
- H
-
hour - 00 to 23
- M
-
minute - 00 to 59
- S
-
second - 00 to 59
- T
-
time as HH:MM:SS
- j
-
day of year - 001 to 366
- w
-
day of week - Sunday = 0
- a
-
abbreviated weekday - Sun to Sat
- h
-
abbreviated month - Jan to Dec
- r
-
time in
AM/PM
notation
SYSTEM V SYNOPSIS
When setting the date, the first
mm
is the month number;
dd
is the day number in the month;
hh
is the hour number (24 hour system);
the second
mm
is the minute number;
yy
is the last 2 digits of the year number and is optional.
The current year is the default if no year is mentioned.
OPTIONS
- -u
-
Display the date in GMT (universal time).
The system operates in
GMT;
date
normally takes care of the
conversion to and from local standard and daylight time.
-u
may also be used to set
GMT
time.
- -a [-]sss.fff
-
Using the
adjtime.2
system call, tell the system to slowly adjust the time by
sss.fff
seconds
(fff
represents fractions of a second).
This adjustment can be positive or
negative. The system's clock will be sped
up or slowed down until it has
drifted by the number of seconds specified.
EXAMPLES
-
date 10080045
Would set the date to Oct 8, 12:45 AM.
If the year were 1986, and the date were so set,
-
date '+DATE: %m/%d/%y%nTIME: %H:%M:%S'
would generate as output:
-
DATE: 08/01/86
TIME: 14:45:05
FILES
- /var/adm/wtmp
-
to record time-setting
- /usr/share/lib/zoneinfo
-
timezone definitions
SEE ALSO
adjtime.2
printf.3v
utmp.5v
DIAGNOSTICS
- date: Failed to set date: Not owner
-
If you try to change the date but are not the super-user.
- date: bad format character
-
If the field descriptor is not recognizable.
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97
