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