"Fri, 27 Dec 2024 15:15:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241227
Only TIME
15:15:05
General datetime
2024-12-27 15:15:05Z
For Database
2024-12-27 15:15:05
For HTTP1.1
Fri, 27 Dec 2024 15:15:05 GMT