"Mon, 29 Jan 2024 20:15:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240129
Only TIME
20:15:00
General datetime
2024-01-29 20:15:00Z
For Database
2024-01-29 20:15:00
For HTTP1.1
Mon, 29 Jan 2024 20:15:00 GMT