"Wed, 21 Aug 2024 19:21:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
19:21:04
General datetime
2024-08-21 19:21:04Z
For Database
2024-08-21 19:21:04
For HTTP1.1
Wed, 21 Aug 2024 19:21:04 GMT