"Sun, 18 Aug 2024 04:04:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
04:04:36
General datetime
2024-08-18 04:04:36Z
For Database
2024-08-18 04:04:36
For HTTP1.1
Sun, 18 Aug 2024 04:04:36 GMT