"Fri, 21 Jun 2024 12:28:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
12:28:39
General datetime
2024-06-21 12:28:39Z
For Database
2024-06-21 12:28:39
For HTTP1.1
Fri, 21 Jun 2024 12:28:39 GMT