"""Shared time utilities; timezone-aware UTC to avoid deprecated datetime.utcnow."""

from datetime import datetime, timezone


def utc_now() -> datetime:
    """Return current UTC time (timezone-aware). Prefer over datetime.utcnow()."""
    return datetime.now(timezone.utc)


def utc_now_iso() -> str:
    """Return current UTC time as ISO format string."""
    return utc_now().isoformat()