"Sun, 28 Apr 2024 21:04:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240428
Only TIME
21:04:09
General datetime
2024-04-28 21:04:09Z
For Database
2024-04-28 21:04:09
For HTTP1.1
Sun, 28 Apr 2024 21:04:09 GMT