"Mon, 20 May 2024 04:00:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
04:00:52
General datetime
2024-05-20 04:00:52Z
For Database
2024-05-20 04:00:52
For HTTP1.1
Mon, 20 May 2024 04:00:52 GMT