"Wed, 18 Sep 2024 15:40:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240918
Only TIME
15:40:00
General datetime
2024-09-18 15:40:00Z
For Database
2024-09-18 15:40:00
For HTTP1.1
Wed, 18 Sep 2024 15:40:00 GMT