"Sun, 18 Aug 2024 04:19:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
04:19:39
General datetime
2024-08-18 04:19:39Z
For Database
2024-08-18 04:19:39
For HTTP1.1
Sun, 18 Aug 2024 04:19:39 GMT