"Wed, 21 Aug 2024 15:20:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
15:20:21
General datetime
2024-08-21 15:20:21Z
For Database
2024-08-21 15:20:21
For HTTP1.1
Wed, 21 Aug 2024 15:20:21 GMT