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I added on function called time_diff() on the arrow.py file to count the time difference in different time zone #1146

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I added on function called time_diff() on the arrow.py file to count the time difference in different time zone #1146

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27 changes: 27 additions & 0 deletions arrow/arrow.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1090,6 +1090,33 @@ def to(self, tz: TZ_EXPR) -> "Arrow":
fold=getattr(dt, "fold", 0),
)

def time_diff(self, tz: TZ_EXPR) -> int:
"""Returns a integer represent the time difference between two timezone. Early is positive, otherwise, negative

:param tz: A :ref:int.

Usage::

>>> utc.timeDef('US/Pacific')
8

"""

if not isinstance(tz, dt_tzinfo):
tz = parser.TzinfoParser.parse(tz)

dt = self._datetime.astimezone(tz)

if dt.date == self._datetime.date:
return self._datetime.hour - dt.hour
elif dt.date > self._datetime.date:
return self._datetime.hour - dt.hour + 24
else:
return self._datetime.hour - dt.hour - 24


return self.datetime.hour - dt.hour

# string output and formatting

def format(
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