rfc3339_timestamp_parsing_formatting_with_builtin_datetime.py

1from datetime import datetime, timezone
2
3# Getting an RFC 3339 / ISO 8601 compliant string from the current time
4# The 'timespec' and 'suffix' ensure the 'Z' format common in RFC 3339
5now_rfc3339 = datetime.now(timezone.utc).isoformat(timespec='seconds').replace('+00:00', 'Z')
6print(f"Formatted: {now_rfc3339}")
7
8# Parsing an RFC 3339 string back into a datetime object
9# Note: fromisoformat() supports the 'Z' suffix in Python 3.11+
10timestamp_str = "2023-10-27T15:30:45Z"
11dt_object = datetime.fromisoformat(timestamp_str.replace('Z', '+00:00'))
12print(f"Parsed: {dt_object}")