"Sat, 27 Apr 2024 20:00:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240427
Only TIME
20:00:04
General datetime
2024-04-27 20:00:04Z
For Database
2024-04-27 20:00:04
For HTTP1.1
Sat, 27 Apr 2024 20:00:04 GMT