format character | Description |
---|---|
B | Swatch Beat/Internet Time |
d | Day of the month |
h | Hour (12 hour format) |
H | Hour (24 hour format) |
i | Minutes |
I | returns 1 if DST is activated, 0 otherwise |
L | returns 1 for leap year, 0 otherwise |
m | Month number |
s | Seconds |
t | Days in current month |
U | Seconds since the Unix Epoch - January 1 1970 00:00:00 GMT - this is the same as time() |
w | Day of the week (0 on Sunday) |
W | ISO-8601 week number of year, weeks starting on Monday |
y | Year (1 or 2 digits - check note below) |
Y | Year (4 digits) |
z | Day of the year |
Z | Timezone offset in seconds |
timestamp - The optional timestamp parameter is 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().