"Mon, 19 Aug 2024 15:20:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
15:20:04
General datetime
2024-08-19 15:20:04Z
For Database
2024-08-19 15:20:04
For HTTP1.1
Mon, 19 Aug 2024 15:20:04 GMT