from __future__ import annotations

from datetime import datetime, timezone, timedelta

KST = timezone(timedelta(hours=9))


def now_utc() -> datetime:
    return datetime.now(timezone.utc)


def now_kst() -> datetime:
    return datetime.now(KST)


def utc_to_kst(dt: datetime) -> datetime:
    return dt.astimezone(KST)