"Wed, 21 Aug 2024 10:38:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
10:38:18
General datetime
2024-08-21 10:38:18Z
For Database
2024-08-21 10:38:18
For HTTP1.1
Wed, 21 Aug 2024 10:38:18 GMT