"Thu, 19 Dec 2024 18:45:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241219
Only TIME
18:45:21
General datetime
2024-12-19 18:45:21Z
For Database
2024-12-19 18:45:21
For HTTP1.1
Thu, 19 Dec 2024 18:45:21 GMT