"Fri, 21 Jun 2024 12:38:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
12:38:34
General datetime
2024-06-21 12:38:34Z
For Database
2024-06-21 12:38:34
For HTTP1.1
Fri, 21 Jun 2024 12:38:34 GMT