"Wed, 20 Mar 2024 11:20:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240320
Only TIME
11:20:21
General datetime
2024-03-20 11:20:21Z
For Database
2024-03-20 11:20:21
For HTTP1.1
Wed, 20 Mar 2024 11:20:21 GMT