File size: 793 Bytes
8ede856 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | from datetime import datetime, timezone
def normalize_datetime_utc(dt: datetime | None) -> datetime | None:
"""Normalize datetime values to UTC.
Naive datetimes are interpreted as UTC to match SQLite storage behavior.
"""
if dt is None:
return None
if dt.tzinfo is None or dt.tzinfo.utcoffset(dt) is None:
return dt.replace(tzinfo=timezone.utc)
return dt.astimezone(timezone.utc)
def to_utc_isoformat(dt: datetime | None) -> str | None:
normalized = normalize_datetime_utc(dt)
if normalized is None:
return None
return normalized.isoformat()
def to_utc_timestamp(dt: datetime | None) -> float | None:
normalized = normalize_datetime_utc(dt)
if normalized is None:
return None
return normalized.timestamp()
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