from datetime import datetime


def get_age_of_user_note(user_note):
    """Extract the age of the given usernote as a timedelta object"""
    datetime_of_user_note = datetime.utcfromtimestamp(user_note['t'])
    age_of_user_note = datetime.utcnow() - datetime_of_user_note
    return age_of_user_note