tm_structure

Gnuplot stores time internally as a 64-bit floating point value representing seconds since the epoch date 1 Jan 1970. In order to interpret this as a time or date it is converted to or from a POSIX standard structure struct_tm. Note that fractional seconds, if any, cannot be retrieved via tm_sec(). The components may be accessed individually using the functions

• tm_hour(t) integer hour in the range 0--23
• tm_mday(t) integer day of month in the range 1--31
• tm_min(t) integer minute in the range 0--59
• tm_mon(t) integer month of year in the range 0--11
• tm_sec(t) integer second in the range 0--59
• tm_wday(t) integer day of the week in the range 0 (Sunday)--6(Saturday)
• tm_yday(t) integer day of the year the range 0--365
• tm_year(t) integer year