"Wed, 21 Aug 2024 20:12:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
20:12:21
General datetime
2024-08-21 20:12:21Z
For Database
2024-08-21 20:12:21
For HTTP1.1
Wed, 21 Aug 2024 20:12:21 GMT