| grouping | page | description |
| M_time::INTRO::OOPS | M_time__oop | OOP interface for M_time(3fm) (LICENSE:MIT) |
| M_time::INTRO | M_time | Fortran module for manipulating and presenting time and date values as defined in ISO 8601:1988 (LICENSE:MIT) |
| M_time:ASTROLOGICAL | easter | calculate date for Easter given a year (LICENSE:MIT) |
| M_time:ASTROLOGICAL | moon_fullness | return percentage of moon phase from new to full (LICENSE:MIT) |
| M_time:ASTROLOGICAL | phase_of_moon | return name for phase of moon for given date (LICENSE:MIT) |
| M_time:C_INTERFACE | system_sleep | call C sleep(3c) or usleep(3c) procedure (LICENSE:MIT) |
| M_time:DATE_PRINTING | box_month | create specified month in a character array (LICENSE:MIT) |
| M_time:DATE_PRINTING | fmtdate | given DAT date-time array return date as string using specified format (LICENSE:MIT) |
| M_time:DATE_PRINTING | fmtdate_usage | display macros recognized by fmtdate(3f) and now(3f) (LICENSE:MIT) |
| M_time:DATE_PRINTING | locale | allow for selecting languages to represent month and weekday names (LICENSE:MIT) |
| M_time:DATE_PRINTING | now | return string representing current time given one of many formats to present with (LICENSE:MIT) |
| M_time:DAY_OF_WEEK | dow | given a date-time array DAT return the day of the week (LICENSE:MIT) |
| M_time:DURATION | days2sec | convert string of form [[-]dd-]hh:mm:ss.nn to seconds (LICENSE:MIT) |
| M_time:DURATION | sec2days | convert seconds to string of form dd-hh:mm:ss (LICENSE:MIT) |
| M_time:JULIAN | d2j | given DAT date-time array returns Julian Date (LICENSE:MIT) |
| M_time:JULIAN | date_to_julian | converts DAT date-time array to Julian Date (LICENSE:MIT) |
| M_time:JULIAN | j2d | given a JED (Julian Ephemeris Date) returns a date-time array DAT. (LICENSE:MIT) |
| M_time:JULIAN | julian_to_date | converts a JED(Julian Ephemeris Date) to a DAT date-time array. (LICENSE:MIT) |
| M_time:MONTH_NAME | mo2d | given month name return DAT date-time array for beginning of that month in specified year (LICENSE:MIT) |
| M_time:MONTH_NAME | mo2v | given month name return month number (1-12) of that month (LICENSE:MIT) |
| M_time:MONTH_NAME | v2mo | returns the month name of a Common month number (LICENSE:MIT) |
| M_time:ORDINAL_DAY | d2o | converts DAT date-time array to Ordinal day (LICENSE:MIT) |
| M_time:ORDINAL_DAY | o2d | converts Ordinal day to DAT date-time array (LICENSE:MIT) |
| M_time:ORDINAL_DAY | ordinal_seconds | seconds since beginning of year (LICENSE:MIT) |
| M_time:ORDINAL_DAY | ordinal_to_date | when given a valid year and day of the year returns the DAT array for the date (LICENSE:MIT) |
| M_time:READING_DATES | guessdate | reads in a date, in various formats (LICENSE:MIT) |
| M_time:UNIX_EPOCH | d2u | given DAT date-time array returns Unix Epoch Time (UET starts at 0000 on 1 Jan. 1970, UTC) (LICENSE:MIT) |
| M_time:UNIX_EPOCH | date_to_unix | converts DAT date-time array to Unix Epoch Time (LICENSE:MIT) |
| M_time:UNIX_EPOCH | u2d | given Unix Epoch Time returns DAT date-time array (LICENSE:MIT) |
| M_time:UNIX_EPOCH | unix_to_date | converts Unix Epoch Time to DAT date-time array (LICENSE:MIT) |
| M_time:WEEK_OF_YEAR | d2w | calculate iso-8601 Week, both numerically and as a string of the form "yyyy-Wmm-d" given a DAT date-time array (LICENSE:MIT) |
| M_time:WEEK_OF_YEAR | w2d | calculate DAT date-time array from iso-8601 numeric Week values or from string "yyyy-Www-d" (LICENSE:MIT) |