"Sun, 18 Aug 2024 11:48:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
11:48:59
General datetime
2024-08-18 11:48:59Z
For Database
2024-08-18 11:48:59
For HTTP1.1
Sun, 18 Aug 2024 11:48:59 GMT