| %a | Abbreviated weekday ("Sun") |
| %A | Full weekday ("Sunday") |
| %b | Abbreviated month ("Jan") |
| %B | Full month ("January") |
| %d | Day of month (01..31) |
| %e | Day of month, no leading zero (1..31) |
| %j | Day of year (001..366) |
| %m | Month (01..12) |
| %U | Week number, Sunday-based (00..53) |
| %W | Week number, Monday-based (00..53) |
| %w | Day of week (0=Sunday..6) |
| %x | Preferred date representation |
| %y | Year without century (00..99) |
| %Y | Year with century |
| %H | Hour, 24-hour clock (00..23) |
| %I | Hour, 12-hour clock (01..12) |
| %l | Hour, 12-hour clock, no leading zero (1..12) |
| %M | Minute (00..59) |
| %N | Fractional seconds (nanoseconds by default) |
| %P | Meridian, lowercase ("am" or "pm") |
| %p | Meridian, uppercase ("AM" or "PM") |
| %S | Second (00..60) |
| %X | Preferred time representation |
| %Z | Timezone name |
| %c | Preferred local date and time representation |
| %% | Literal "%" character |