"Mon, 20 May 2024 22:09:49"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
22:09:49
General datetime
2024-05-20 22:09:49Z
For Database
2024-05-20 22:09:49
For HTTP1.1
Mon, 20 May 2024 22:09:49 GMT