"Fri, 21 Jun 2024 20:06:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
20:06:03
General datetime
2024-06-21 20:06:03Z
For Database
2024-06-21 20:06:03
For HTTP1.1
Fri, 21 Jun 2024 20:06:03 GMT