"Sun, 18 Aug 2024 04:55:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
04:55:05
General datetime
2024-08-18 04:55:05Z
For Database
2024-08-18 04:55:05
For HTTP1.1
Sun, 18 Aug 2024 04:55:05 GMT