Python常用UTC时间转换

对传入的时间戳转化为UCT的datetime

start_time = datetime.datetime.utcfromtimestamp(start_timestamp)

将UTC的datetime转化为本地datetime

def utc2local(utc):
    """将UTC的datetime转换为本地时间"""
    epoch = time.mktime(utc.timetuple())
    offset = datetime.fromtimestamp(epoch) - datetime.utcfromtimestamp(epoch)
    return utc + offset

将字符串格式的时间转化为UTC时间

def date_str_to_datetime(date_str):
    """将字符串转化为utc时间"""
    try:
        tmp_date = datetime.datetime.strptime(date_str, current_config.DATE_FORMAT)
        tmp_date = datetime.datetime.utcfromtimestamp(tmp_date.timestamp())
    except Exception:
        return None
    else:
        return tmp_date