"Fri, 21 Jun 2024 10:51:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
10:51:20
General datetime
2024-06-21 10:51:20Z
For Database
2024-06-21 10:51:20
For HTTP1.1
Fri, 21 Jun 2024 10:51:20 GMT