"Sun, 30 Jun 2024 18:40:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240630
Only TIME
18:40:45
General datetime
2024-06-30 18:40:45Z
For Database
2024-06-30 18:40:45
For HTTP1.1
Sun, 30 Jun 2024 18:40:45 GMT