"Sat, 22 Jun 2024 15:59:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240622
Only TIME
15:59:13
General datetime
2024-06-22 15:59:13Z
For Database
2024-06-22 15:59:13
For HTTP1.1
Sat, 22 Jun 2024 15:59:13 GMT