"Sun, 23 Jun 2024 18:38:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
18:38:10
General datetime
2024-06-23 18:38:10Z
For Database
2024-06-23 18:38:10
For HTTP1.1
Sun, 23 Jun 2024 18:38:10 GMT