"Wed, 20 Mar 2024 18:40:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240320
Only TIME
18:40:57
General datetime
2024-03-20 18:40:57Z
For Database
2024-03-20 18:40:57
For HTTP1.1
Wed, 20 Mar 2024 18:40:57 GMT