| Operator | Example/Output | Notes |
|---|---|---|
| %Y | 2010, -0011, 14292 | Year with century, can be negative |
| %C | 20 (in 2009) | Year / 100, rounded down |
| %y | (00..99), 09 in 2009 | Year % 100, last two digits of year |
| %m | (01..12) | Month of year, zero-padded |
| %_m | ( 1..12) | Month of year, blank-padded |
| %-m | (1..12) | Month of year, no padding |
| %B | January | Name of month |
| %^B | JANUARY | Uppercase name of month |
| %b | Jan | Abbreviated month name, same as %h |
| %h | Jan | Abbreviated month name, same as %b |
| %^b | JAN | Uppercase and abbreviated month name |
| %d | (01..31) | Day of month, zero-padded |
| %-d | (1..31) | Day of month, no padding |
| %e | ( 1..31) | Day of month, blank-padded |
| %j | (001..366) | Day of year |
| %A | Sunday | Full weekday name |
| %^A | SUNDAY | Uppercase weekday name |
| %a | Sun | Abbreviated weekday name |
| %^a | SUN | Uppercase and abbreviated weekday name |
| %u | (1..7) | Day of the week, where Monday is 1 |
| %w | (0..6) | Day of the week, where Sunday is 0 |
| %U | (00..53) | Week of the year, where Sunday starts the week |
| %W | (00..53) | Week of the year, where Monday starts the week |
| Operator | Example/Output | Notes |
|---|---|---|
| %H | (00..23) | Hour of day, 24-hour clock, zero-padded |
| %k | ( 0..23) | Hour of day, 24-hour clock, blank-padded |
| %I | (01..12) | Hour of day, 12-hour clock, zero-padded |
| %l | ( 1..12) | Hour of day, 12-hour clock, blank-padded |
| %P | am, pm | Meridian indicator, lowercase |
| %p | AM, PM | Meridian indicator, uppercase |
| %M | (00..59) | Minute of the hour |
| %S | (00..59) | Second of the minute |
| %L | (000..999) | Millisecond of the second |
| %N | (000000000..999999999) | Nanosecond of the second, 9 digits |
| %xN | %3N, x = 3, 6, 9, 12, 15, 21, 24 | Fractional second, where x is the number of digits |
| %z | +0900 | Time zone as hour and minute offset from UTC |
| %:z | +09:00 | Hour and minute offset with colon |
| %::z | +09:00:00 | Hour, minute, and second offset with colon |
| %Z | JST | Time zone abbreviation, or similar information. OS dependent. Does not work when time zone offset is used in original object. |
| %s | 1463667344 | Unix Epoch, number of seconds since 1970-01-01 00:00:00 UTC |
| Operator | Example/Output | Notes |
|---|---|---|
| %c | Thu May 19 10:34:37 2016 | Date and time (%a %b %e %T %Y) |
| %D | 05/19/16 | Date (%m/%d/%y), same as %x |
| %x | 05/19/16 | Date (%m/%d/%y), same as %D |
| %F | 2016-05-19 | ISO 8601 date format (%Y-%m-%d) |
| %v | 9-MAY-2016 | VMS date (%e-%^b-%4Y) |
| %r | 10:38:08 AM | 12-hour time (%I:%M:%S %p) |
| %R | 14:38 | 24-hour time (%H:%M) |
| %T | 14:38:08 | 24-hour time (%H:%M:%S), same as %X |
| %X | 14:38:08 | 24-hour time (%H:%M:%S), same as %T |
| Operator | Example/Output | Notes |
|---|---|---|
| %n | \n | New-line character |
| %t | \t | Tab character |
| %% | % | Literal % character |
| - | %-d, %-l | Don't pad numerical output |
| _ | %_m | Use spaces for padding (blank-padded) |
| 0 | %0d | Use zeros for padding |
| ^ | %^a, %^B | Upcase the result string |
| # | %#A, THURSDAY | Change case |
| : | %:z | Use colons for %z |
| Operator | Example/Output | Notes |
|---|---|---|
| %G | 2016 | ISO 8601 week-based year |
| %g | (00.99), 09 in 2009 | Last 2 digits of ISO 8601 week-based year |
| %V | (01..53) | Week number of ISO 8601 week-based year |