"Sun, 18 Aug 2024 15:30:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
15:30:37
General datetime
2024-08-18 15:30:37Z
For Database
2024-08-18 15:30:37
For HTTP1.1
Sun, 18 Aug 2024 15:30:37 GMT