Source code for opc.datetime

from datetime import datetime as _datetime, timezone as _timezone




class Dt():
    """A utility class providing static methods for datetime conversions
    related to w3cdtf format. w3cdtf format is like 2023-09-26T15:01:32Z in utc
    """


    @staticmethod
    def to_w3cdtf(dt_obj):
        """Method to convert datetime object to w3cdtf format string value

        :param dt_obj: timezone aware datetime.datetime object
        :returns: str value of dt_obj in w3cdtf format
        """
        dt_obj = dt_obj.astimezone(_timezone.utc)
        string = _datetime.isoformat(
            dt_obj, timespec="seconds").replace('+00:00', 'Z')
        return string if string.endswith('Z') else string+'Z'




    @staticmethod
    def from_w3cdtf(string):
        """Method to convert w3cdtf format string to datetime.datetime object

        :param string: str value of datetime.datetime object in w3cdtf format
        :returns: datetime.datetime object
        """
        return _datetime.fromisoformat(string)