| Day | --- | --- |
| %a | An abbreviated textual representation of the day | Sun through Sat |
| %A | A full textual representation of the day | Sunday through Saturday |
| %d | Two-digit day of the month (with leading zeros) | 01 to 31 |
| %e | Day of the month, with a space preceding single digits. Not implemented as described on Windows. See below for more information. | 1 to 31 |
| %j | Day of the year, 3 digits with leading zeros | 001 to 366 |
| %u | ISO-8601 numeric representation of the day of the week | 1 (for Monday) though 7 (for Sunday) |
| %w | Numeric representation of the day of the week | 0 (for Sunday) through 6 (for Saturday) |
| Week | --- | --- |
| %U | Week number of the given year, starting with the first Sunday as the first week | 13 (for the 13th full week of the year) |
| %V | ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week | 01 through 53 (where 53 accounts for an overlapping week) |
| %W | A numeric representation of the week of the year, starting with the first Monday as the first week | 46 (for the 46th week of the year beginning with a Monday) |
| Month | --- | --- |
| %b | Abbreviated month name, based on the locale | Jan through Dec |
| %B | Full month name, based on the locale | January through December |
| %h | Abbreviated month name, based on the locale (an alias of %b) | Jan through Dec |
| %m | Two digit representation of the month | 01 (for January) through 12 (for December) |
| Year | --- | --- |
| %C | Two digit representation of the century (year divided by 100, truncated to an integer) | 19 for the 20th Century |
| %g | Two digit representation of the year going by ISO-8601:1988 standards (see %V) | Example: 09 for the week of January 6, 2009 |
| %G | The full four-digit version of %g | Example: 2008 for the week of January 3, 2009 |
| %y | Two digit representation of the year | Example: 09 for 2009, 79 for 1979 |
| %Y | Four digit representation for the year | Example: 2038 |
| Time | --- | --- |
| %H | Two digit representation of the hour in 24-hour format | 00 through 23 |
| %I | Two digit representation of the hour in 12-hour format | 01 through 12 |
| %l (lower-case 'L') | Hour in 12-hour format, with a space preceeding single digits | 1 through 12 |
| %M | Two digit representation of the minute | 00 through 59 |
| %p | UPPER-CASE 'AM' or 'PM' based on the given time | Example: AM for 00:31, PM for 22:23 |
| %P | lower-case 'am' or 'pm' based on the given time | Example: am for 00:31, pm for 22:23 |
| %r | Same as "%I:%M:%S %p" | Example: 09:34:17 PM for 21:34:17 |
| %R | Same as "%H:%M" | Example: 00:35 for 12:35 AM, 16:44 for 4:44 PM |
| %S | Two digit representation of the second | 00 through 59 |
| %T | Same as "%H:%M:%S" | Example: 21:34:17 for 09:34:17 PM |
| %X | Preferred time representation based on locale, without the date | Example: 03:59:16 or 15:59:16 |
| %z | Either the time zone offset from UTC or the abbreviation (depends on operating system) | Example: -0500 or EST for Eastern Time |
| %Z | The time zone offset/abbreviation option NOT given by %z (depends on operating system) | Example: -0500 or EST for Eastern Time |
| Time and Date Stamps | --- | --- |
| %c | Preferred date and time stamp based on local | Example: Tue Feb 5 00:45:10 2009 for February 5, 2009 at 12:45:10 AM |
| %D | Same as "%m/%d/%y" | Example: 02/05/09 for February 5, 2009 |
| %F | Same as "%Y-%m-%d" (commonly used in database datestamps) | Example: 2009-02-05 for February 5, 2009 |
| %s | Unix Epoch Time timestamp (same as the time() function) | Example: 305815200 for September 10, 1979 08:40:00 AM |
| %x | Preferred date representation based on locale, without the time | Example: 02/05/09 for February 5, 2009 |
| Miscellaneous | --- | --- |
| %n | A newline character ("\n") | --- |
| %t | A Tab character ("\t") | --- |
| %% | A literal percentage character ("%") | --- |
