"Sun, 23 Jun 2024 18:35:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
18:35:23
General datetime
2024-06-23 18:35:23Z
For Database
2024-06-23 18:35:23
For HTTP1.1
Sun, 23 Jun 2024 18:35:23 GMT