Convert UNIX timestamp into human readable time delta. E.g.: 1356354501 -> "10 minutes ago"

gistfile1.py

def unix_to_delta(self, timestamp):

    """
        @type timestamp int
        @return str

        Converts UNIX timestamp into human readable time delta.
        E.g.: "10 minutes ago"
    """

    # defining UNIX time constants
    minute = 60
    hour = minute * 60
    day = hour * 24
    month = day * 30
    year = month * 12
    # getting time delta
    delta = int(time()) - timestamp

    # desiding which time to use
    result, plural = 'right now', None
    if delta < minute:
        delta, plural = int(delta), 'second%s'
    elif minute <= delta < hour:
        delta, plural = int(math.floor(delta / minute)), 'minute%s'
    elif hour <= delta < day:
        delta, plural = int(math.floor(delta / hour)), 'hour%s'
    elif day <= delta < month:
        delta, plural = int(math.floor(delta / day)), 'day%s'
    elif month <= delta < year:
        delta, plural = int(math.floor(delta / month)), 'month%s'
    elif year <= delta:
        delta, plural = int(math.floor(delta / year)), 'year%s'
    # polishing result
    if plural:
        plural %= 's'[delta == 1:]
        result = '%i %s ago' % (delta, plural)
    return result