from datetime import datetime, timedelta, timezone


def human_datetime(time: datetime) -> str:
    return "{:%Y-%m-%d %H:%M:%S}".format(time)


def human_timedelta(delta: timedelta) -> str:
    if delta.days == 0:
        days = ""
    elif delta.days == 1:
        days = "1 day, "
    else:
        days = f"{delta.days} days, "

    hours = delta.seconds // 3600
    minutes = (delta.seconds - (hours * 3600)) // 60

    if hours == 0 and minutes == 0:
        return "<1 minute"

    if hours == 0:
        return days + f"{minutes}min"

    return days + f"{hours}h {minutes}min"


CST = timezone(timedelta(hours=8))