source https://github.com/daurnimator/luatz/blob/master/luatz/timetable.lua edited down to just what is needed.
| Public.from_timetable (timetable) | Converts timetable into unix epoch timestamp |
| Public.to_string (secs) | Converts unix epoch timestamp into human readable string. |
| Public.to_timetable (sec) | Converts unix epoch timestamp into table {year: number, month: number, day: number, hour: number, min: number, sec: number} |
Converts timetable into unix epoch timestamp
Parameters: