"Sun, 18 Aug 2024 15:02:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
15:02:54
General datetime
2024-08-18 15:02:54Z
For Database
2024-08-18 15:02:54
For HTTP1.1
Sun, 18 Aug 2024 15:02:54 GMT