"Mon, 29 Apr 2024 21:04:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240429
Only TIME
21:04:11
General datetime
2024-04-29 21:04:11Z
For Database
2024-04-29 21:04:11
For HTTP1.1
Mon, 29 Apr 2024 21:04:11 GMT