time_days_in_month ()

gint
time_days_in_month (gint year,
                    gint month);

Returns the number of days in the month. Year is the normal year, e.g. 2001. Month is 0 (Jan) to 11 (Dec).

time_day_of_year ()

gint
time_day_of_year (gint day,
                  gint month,
                  gint year);

Returns the 1-based day number within the year of the specified date. Year is the normal year, e.g. 2001. Month is 0 to 11.

time_day_of_week ()

gint
time_day_of_week (gint day,
                  gint month,
                  gint year);

Returns the day of the week for the specified date, 0 (Sun) to 6 (Sat). For the days that were removed on the Gregorian reformation, it returns Thursday. Year is the normal year, e.g. 2001. Month is 0 to 11.

time_is_leap_year ()

gboolean
time_is_leap_year (gint year);

Returns whether the specified year is a leap year. Year is the normal year, e.g. 2001.

time_leap_years_up_to ()

gint
time_leap_years_up_to (gint year);

Returns the number of leap years since year 1 up to (but not including) the specified year. Year is the normal year, e.g. 2001.

isodate_from_time_t ()

gchar *
isodate_from_time_t (time_t t);

Creates an ISO 8601 UTC representation from a time value.

time_from_isodate ()

time_t
time_from_isodate (const gchar *str);

Converts an ISO 8601 UTC time string into a time_t value.

time_add_day ()

time_t
time_add_day (time_t time,
              gint days);

Adds a day onto the time, using local time. Note that if clocks go forward due to daylight savings time, there are some non-existent local times, so the hour may be changed to make it a valid time. This also means that it may not be wise to keep calling time_add_day() to step through a certain period - if the hour gets changed to make it valid time, any further calls to time_add_day() will also return this hour, which may not be what you want.

time_add_week ()

time_t
time_add_week (time_t time,
               gint weeks);

Adds the given number of weeks to a time value.

time_day_begin ()

time_t
time_day_begin (time_t t);

Returns the start of the day, according to the local time.

time_day_end ()

time_t
time_day_end (time_t t);

Returns the end of the day, according to the local time.

time_add_day_with_zone ()

time_t
time_add_day_with_zone (time_t time,
                        gint days,
                        icaltimezone *zone);

Adds or subtracts a number of days to/from the given time_t value, using the given timezone. NOTE: this function is only here to make the transition to the timezone functions easier. New code should use icaltimetype values and icaltime_adjust() to add or subtract days, hours, minutes & seconds.

time_add_week_with_zone ()

time_t
time_add_week_with_zone (time_t time,
                         gint weeks,
                         icaltimezone *zone);

Adds or subtracts a number of weeks to/from the given time_t value, using the given timezone. NOTE: this function is only here to make the transition to the timezone functions easier. New code should use icaltimetype values and icaltime_adjust() to add or subtract days, hours, minutes & seconds.

time_add_month_with_zone ()

time_t
time_add_month_with_zone (time_t time,
                          gint months,
                          icaltimezone *zone);

Adds or subtracts a number of months to/from the given time_t value, using the given timezone.

If the day would be off the end of the month (e.g. adding 1 month to 30th January, would lead to an invalid day, 30th February), it moves it down to the last day in the month, e.g. 28th Feb (or 29th in a leap year.)

NOTE: this function is only here to make the transition to the timezone functions easier. New code should use icaltimetype values and icaltime_adjust() to add or subtract days, hours, minutes & seconds.

time_year_begin_with_zone ()

time_t
time_year_begin_with_zone (time_t time,
                           icaltimezone *zone);

Returns the start of the year containing the given time_t, using the given timezone. NOTE: this function is only here to make the transition to the timezone functions easier. New code should use icaltimetype values and icaltime_adjust() to add or subtract days, hours, minutes & seconds.

time_month_begin_with_zone ()

time_t
time_month_begin_with_zone (time_t time,
                            icaltimezone *zone);

Returns the start of the month containing the given time_t, using the given timezone. NOTE: this function is only here to make the transition to the timezone functions easier. New code should use icaltimetype values and icaltime_adjust() to add or subtract days, hours, minutes & seconds.

time_week_begin_with_zone ()

time_t
time_week_begin_with_zone (time_t time,
                           gint week_start_day,
                           icaltimezone *zone);

Returns the start of the week containing the given time_t, using the given timezone. week_start_day should use the same values as mktime(), i.e. 0 (Sun) to 6 (Sat). NOTE: this function is only here to make the transition to the timezone functions easier. New code should use icaltimetype values and icaltime_adjust() to add or subtract days, hours, minutes & seconds.

time_day_begin_with_zone ()

time_t
time_day_begin_with_zone (time_t time,
                          icaltimezone *zone);

Returns the start of the day containing the given time_t, using the given timezone. NOTE: this function is only here to make the transition to the timezone functions easier. New code should use icaltimetype values and icaltime_adjust() to add or subtract days, hours, minutes & seconds.

time_day_end_with_zone ()

time_t
time_day_end_with_zone (time_t time,
                        icaltimezone *zone);

Returns the end of the day containing the given time_t, using the given timezone. (The end of the day is the start of the next day.) NOTE: this function is only here to make the transition to the timezone functions easier. New code should use icaltimetype values and icaltime_adjust() to add or subtract days, hours, minutes & seconds.

time_to_gdate_with_zone ()

void
time_to_gdate_with_zone (GDate *date,
                         time_t time,
                         icaltimezone *zone);

Converts a time_t value to a GDate structure using the specified timezone. This is analogous to g_date_set_time() but takes the timezone into account.

icaltimetype_to_tm ()

struct tm
icaltimetype_to_tm (struct icaltimetype *itt);

Convers an icaltimetype structure into a GLibc's struct tm.

Since: 2.22

icaltimetype_to_tm_with_zone ()

struct tm
icaltimetype_to_tm_with_zone (struct icaltimetype *itt,
                              icaltimezone *from_zone,
                              icaltimezone *to_zone);

Converts a time value from one timezone to another, and returns a struct tm representation of the time.

Since: 2.22

tm_to_icaltimetype ()

struct icaltimetype
tm_to_icaltimetype (struct tm *tm,
                    gboolean is_date);

Converts a struct tm into an icaltimetype.

Since: 2.22