Time delta in a human readable format

human_readable_time.py

def humanize_time_delta(td_object):
    seconds = td_object
    periods = [
        ('year', 60 * 60 * 24 * 365),
        ('month', 60 * 60 * 24 * 30),
        ('day', 60 * 60 * 24),
        ('hour', 60 * 60),
        ('minute', 60),
        ('second', 1),
        ('milli_second', 1 / 10 ** 3),
        ('micro_second', 1 / 10 ** 6),
        ('nano_second', 1 / 10 ** 9),
    ]

    strings = []
    for period_name, period_seconds in periods:
        if seconds >= period_seconds:
            period_value, seconds = divmod(seconds, period_seconds)
            has_s = 's' if period_value > 1 else ''
            strings.append("%s %s%s" % (period_value, period_name, has_s))
    return ", ".join(strings)

print(humanize_time_delta(65213662.010002045))

# 2.0 years, 24.0 days, 18.0 hours, 54.0 minutes, 22.0 seconds, 10.0 milli_seconds, 2.0 micro_seconds, 46.0 nano_seconds