"Mon, 27 Jan 2025 05:30:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250127
Only TIME
05:30:00
General datetime
2025-01-27 05:30:00Z
For Database
2025-01-27 05:30:00
For HTTP1.1
Mon, 27 Jan 2025 05:30:00 GMT