from datetime import datetime
from zoneinfo import ZoneInfo
from tzlocal import get_localzone


def timestamp(naive_time: datetime = None, target_tz=ZoneInfo("Asia/Shanghai")):
    if not naive_time:
        naive_time = datetime.now()

    local_tz = get_localzone()
    aware_local = naive_time.replace(tzinfo=local_tz)
    return aware_local.astimezone(target_tz).strftime("%Y-%m-%d %H:%M:%S")