"Sun, 28 Apr 2024 21:04:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240428
Only TIME
21:04:10
General datetime
2024-04-28 21:04:10Z
For Database
2024-04-28 21:04:10
For HTTP1.1
Sun, 28 Apr 2024 21:04:10 GMT