"Mon, 19 Aug 2024 15:56:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
15:56:55
General datetime
2024-08-19 15:56:55Z
For Database
2024-08-19 15:56:55
For HTTP1.1
Mon, 19 Aug 2024 15:56:55 GMT