"Sat, 18 May 2024 16:23:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240518
Only TIME
16:23:01
General datetime
2024-05-18 16:23:01Z
For Database
2024-05-18 16:23:01
For HTTP1.1
Sat, 18 May 2024 16:23:01 GMT