"Mon, 20 May 2024 22:20:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
22:20:19
General datetime
2024-05-20 22:20:19Z
For Database
2024-05-20 22:20:19
For HTTP1.1
Mon, 20 May 2024 22:20:19 GMT