10 examples of 'convert datetime to epoch python' in Python

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def epoch2datetime(epoch):
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    return datetime.datetime.utcfromtimestamp(epoch)

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def _epoch_utc_to_datetime(epoch_utc):
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    """
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    Helper function for converting epoch timestamps (as stored in JWTs) into
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    python datetime objects (which are easier to use with sqlalchemy).
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    """
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    return datetime.fromtimestamp(epoch_utc)

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def totimestamp(inputdate, epoch=datetime(1970,1,1)):
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  dt = datetime.strptime(inputdate, '%Y-%m-%d')
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  td = dt - epoch
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  timestamp = (td.microseconds + (td.seconds + td.days * 24 * 3600) * 10**6) / 1e6 # td.total_seconds()
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  return int(timestamp)

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def datetime_to_timestamp(from_datetime):
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    return time.mktime(from_datetime.timetuple())

11
def to_datetime(timestamp):
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    """Return datetime object from timestamp."""
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    return dt.fromtimestamp(time.mktime(
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        time.localtime(int(str(timestamp)[:10]))))

470
def _to_epoch_time(date):
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    """Convert a `datetime` object to an integer number of seconds since
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    the (local) Unix epoch.
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    """
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    epoch = datetime.fromtimestamp(0)
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    delta = date - epoch
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    return int(delta.total_seconds())

150
def utc_timestamp_to_datetime(timestamp):
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    """
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    Converts the given timestamp to a datetime instance.
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    :type timestamp: float
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    :rtype: datetime
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    """
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    if timestamp is not None:
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        return datetime.fromtimestamp(timestamp, utc)

24
def _epoch_utc_to_arrow(epoch_utc):
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    """
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    生成arrow时间
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    """
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    time = arrow.get(epoch_utc)
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    return arrow.get(time.astimezone(tz.gettz("Asia/Shanghai")))

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def datetime2timestamp(dt=None, timezone='Asia/Shanghai'):
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    if dt is None:
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        dt = datetime.now()
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    tz = pytz.timezone(timezone)
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    dt = dt.replace(tzinfo=pytz.utc).astimezone(tz)
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    return calendar.timegm(dt.timetuple())

605
def datetime_to_timestamp(dt):
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    if isinstance(dt, datetime.datetime):
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        return calendar.timegm(dt.utctimetuple())
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    return dt