| Option | Description |
| %a | Short weekday name in current locale (Variable lc_time_names). |
| %b | Short form month name in current locale. For locale en_US this is one of: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov or Dec. |
| %c | Month with 1 or 2 digits. |
| %D | Day with English suffix 'th', 'nd', 'st' or 'rd''. (1st, 2nd, 3rd...). |
| %d | Day with 2 digits. |
| %e | Day with 1 or 2 digits. |
| %f | Microseconds 6 digits. |
| %H | Hour with 2 digits between 00-23. |
| %h | Hour with 2 digits between 01-12. |
| %I | Hour with 2 digits between 01-12. |
| %i | Minute with 2 digits. |
| %j | Day of the year (001-366) |
| %k | Hour with 1 digits between 0-23. |
| %l | Hour with 1 digits between 1-12. |
| %M | Full month name in current locale (Variable lc_time_names). |
| %m | Month with 2 digits. |
| %p | AM/PM according to current locale (Variable lc_time_names). |
| %r | Time in 12 hour format, followed by AM/PM. Short for '%I:%i:%S %p'. |
| %S | Seconds with 2 digits. |
| %s | Seconds with 2 digits. |
| %T | Time in 24 hour format. Short for '%H:%i:%S'. |
| %U | Week number (00-53), when first day of the week is Sunday. |
| %u | Week number (00-53), when first day of the week is Monday. |
| %V | Week number (01-53), when first day of the week is Sunday. Used with %X. |
| %v | Week number (01-53), when first day of the week is Monday. Used with %x. |
| %W | Full weekday name in current locale (Variable lc_time_names). |
| %w | Day of the week. 0 = Sunday, 6 = Saturday. |
| %X | Year with 4 digits when first day of the week is Sunday. Used with %V. |
| %x | Year with 4 digits when first day of the week is Sunday. Used with %v. |
| %Y | Year with 4 digits. |
| %y | Year with 2 digits. |
| %# | For str_to_date(), skip all numbers. |
| %. | For str_to_date(), skip all punctation characters. |
| %@ | For str_to_date(), skip all alpha characters. |
| %% | A literal % character. |