The gmdate() function formats a GMT/UTC date/time.
Syntax
gmdate(format, timestamp)
Parameters
format − Specifies the format of the outputted date string. The possible characters −
d − The day of the month (from 01 to 31)
D − A textual representation of a day (three letters)
j − The day of the month without leading zeros (1 to 31)
l (lowercase 'L') − A full textual representation of a day
N − The ISO-8601 numeric representation of a day (1 for Monday through 7 for Sunday)
S − The English ordinal suffix for the day of the month (2 characters st, nd, rd or th. Works well with j)
w − A numeric representation of the day (0 for Sunday through 6 for Saturday)
z − The day of the year (from 0 through 365)
W − The ISO-8601 week number of year (weeks starting on Monday)
F − A full textual representation of a month (January through December)
m − A numeric representation of a month (from 01 to 12)
M − A short textual representation of a month (three letters)
n − A numeric representation of a month, without leading zeros (1 to 12)
t − The number of days in the given month
L − Whether it's a leap year (1 if it is a leap year, 0 otherwise)
o − The ISO-8601 year number
Y − A four digit representation of a year
y − A two digit representation of a year
a − Lowercase am or pm
A − Uppercase AM or PM
B − Swatch Internet time (000 to 999)
g − 12-hour format of an hour (1 to 12)
G − 24-hour format of an hour (0 to 23)
h − 12-hour format of an hour (01 to 12)
H − 24-hour format of an hour (00 to 23)
i − Minutes with leading zeros (00 to 59)
s − Seconds, with leading zeros (00 to 59)
e − The timezone identifier (Examples: UTC, Atlantic/Azores)
I (capital i) − Whether the date is in daylights savings time (1 if Daylight Savings Time, 0 otherwise)
O − Difference to Greenwich time (GMT) in hours (Example: +0100)
T − Timezone setting of the PHP machine (Examples: EST, MDT)
Z − Timezone offset in seconds. The offset west of UTC is negative, and the offset east of UTC is positive (-43200 to 43200)
c − The ISO-8601 date (e.g. 2004-02-12T15:19:21+00:00)
r − The RFC 2822 formatted date (e.g. Thu, 21 Dec 2000 16:01:07 +0200)
U − The seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)
timestamp − An integer Unix timestamp that defaults to the current local time if a timestamp is not given. In other words, it defaults to the value of time().
Return
The gmdate() function returns a formatted date string. If a non-numeric value is used for timestamp, FALSE is returned and an E_WARNING level error is emitted.
Example
The following is an example −
<?php
echo gmdate("M d Y H:i:s", mktime(0, 0, 0, 8, 8, 2018));
?>Output
The following is the output −
Aug 08 2018 00:00:00
Example
Let us see another example −
<?php echo gmdate(DATE_RFC822); ?>
Output
The following is the output −
Thu, 11 Oct 18 05:10:32 +0000