"Sun, 18 Aug 2024 23:28:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
23:28:20
General datetime
2024-08-18 23:28:20Z
For Database
2024-08-18 23:28:20
For HTTP1.1
Sun, 18 Aug 2024 23:28:20 GMT