"Mon, 19 Aug 2024 15:59:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
15:59:59
General datetime
2024-08-19 15:59:59Z
For Database
2024-08-19 15:59:59
For HTTP1.1
Mon, 19 Aug 2024 15:59:59 GMT