a | The abbreviated weekday name according to the current locale. |
A | The full weekday name according to the current locale. |
b | The abbreviated month name according to the current locale. |
B | The full month name according to the current locale. |
c | The preferred date and time representation for the current locale. |
C | The century number (year/100) as a 2-digit integer. (SU) |
d | The day of the month as a decimal number (range 01 to 31). |
D | Equivalent to m/d/y. |
e | Like d, the day of the month as a decimal number, but a leading
zero is replaced by a space. (SU) |
E | Modifier: use alternative format, see below. (SU) |
F | Equivalent to Y-m-d (the ISO 8601 date format). (C99) |
G | The ISO 8601 year with century as a decimal number. The 4-digit
year corresponding to the ISO week number (see V). This has the
same format and value as y, except that if the ISO week number
belongs to the previous or next year, that year is used instead. |
g | Like G, but without century, i.e., with a 2-digit year (00-99). |
h | Equivalent to b. |
H | The hour as a decimal number using a 24-hour clock (range 00 to 23). |
I | The hour as a decimal number using a 12-hour clock (range 01 to 12). |
j | The day of the year as a decimal number (range 001 to 366). |
k | The hour (24-hour clock) as a decimal number (range 0 to 23); sin-
gle digits are preceded by a blank. (See also H.) |
l | The hour (12-hour clock) as a decimal number (range 1 to 12); sin-
gle digits are preceded by a blank. (See also I.) |
m | The month as a decimal number (range 01 to 12). |
M | The minute as a decimal number (range 00 to 59). |
n | A newline character. (SU) |
p | Either `AM' or `PM' according to the given time value, or the cor-
responding strings for the current locale. Noon is treated as `pm' and midnight as `am'. |
r | The time in a.m. or p.m. notation. In the POSIX locale this is
equivalent to `I:M:S p'. |
s | The number of seconds since the Epoch, i.e., since 1970-01-01
00:00:00 UTC. |
S | The second as a decimal number (range 00 to 60). (The range is up
to 60 to allow for occasional leap seconds.) |
t | A tab character. |
T | The time in 24-hour notation (H:M:S). (SU) |
u | The day of the week as a decimal, range 1 to 7, Monday being 1.
See also w. |
U | The week number of the current year as a decimal number, range 00
to 53, starting with the first Sunday as the first day of week 01. See also V and W. |
V | The ISO 8601:1988 week number of the current year as a decimal num-
ber, range 01 to 53, where week 1 is the first week that has at
least 4 days in the current year, and with Monday as the first day
of the week. See also U and W. |
w | The day of the week as a decimal, range 0 to 6, Sunday being 0. |
W | The week number of the current year as a decimal number, range 00
to 53, starting with the first Monday as the first day of week 01. |
x | The preferred date representation for the current locale without
the time. |
X | The preferred time representation for the current locale without
the date. |
y | The year as a decimal number without a century (range 00 to 99). |
Y | The year as a decimal number including the century. |
z | The time-zone as hour offset from GMT. Required to emit
RFC822-conformant dates (using "a, d b Y H:M:S z"). |
Z | The time zone or name or abbreviation. |
+ | The date and time in date(1) format. (TZ) |
WARNING: Please note that this list is taken from the unix version of the strftime
function and not all the escape codes may be supported by other platforms.