10 examples of 'pandas datetime to unix timestamp' in Python

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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)

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def datetimeAsTimestamp(dt):
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    return dt.timestamp()

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def timestamp2datetime(timestamp: int):
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    date = datetime.datetime.fromtimestamp(timestamp / 1000)
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    return date

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def datetime_to_timestamp(dt_):
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    """Convert given datetime object to timestamp in seconds."""
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    return dt_.replace(tzinfo=dt.timezone.utc).timestamp()

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def timestamp_to_datetime(s):
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    """
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    Convert a Core Data timestamp to a datetime. They're all a float of seconds since 1 Jan 2001. We calculate
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    the seconds in offset.
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    """
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    if not s:
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        return None
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    OFFSET = (datetime.datetime(2001, 1, 1, 0, 0, 0) - datetime.datetime.fromtimestamp(0)).total_seconds()
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    return datetime.datetime.fromtimestamp(s + OFFSET)

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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())

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def timestamp_to_datetime(ts):
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    """
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    Convert timestamps to datetime objects
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    """
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    if ts is None:
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        return None
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    if isinstance(ts, (str, bytes)):
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        ts = float(ts)
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    return datetime.datetime.utcfromtimestamp(ts)

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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

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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]))))

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def converter(df: DataFrame) -> Series:
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    return df[field_name]