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timestamp.py: Add {floor,ceiling}_to_{hour,day} to parallel floor_to_day.

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This commit is contained in:
Rishi Gupta
2016-12-19 18:34:05 -08:00
committed by Tim Abbott
parent f7c29f1b7f
commit 40529cdd14
1 changed files with 19 additions and 0 deletions
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19
zerver/lib/timestamp.py
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@@ -14,11 +14,30 @@ def datetime_to_UTC(datetime_object):
return datetime_object.astimezone(utc)
return datetime_object.replace(tzinfo=utc)
def floor_to_hour(datetime_object):
# type: (datetime.datetime) -> datetime.datetime
return datetime.datetime(*datetime_object.timetuple()[:4]) \
.replace(tzinfo=datetime_object.tzinfo)
def floor_to_day(datetime_object):
# type: (datetime.datetime) -> datetime.datetime
return datetime.datetime(*datetime_object.timetuple()[:3]) \
.replace(tzinfo=datetime_object.tzinfo)
def ceiling_to_hour(datetime_object):
# type: (datetime.datetime) -> datetime.datetime
floor = floor_to_hour(datetime_object)
if floor == datetime_object:
return floor
return floor + datetime.timedelta(hours=1)
def ceiling_to_day(datetime_object):
# type: (datetime.datetime) -> datetime.datetime
floor = floor_to_day(datetime_object)
if floor == datetime_object:
return floor
return floor + datetime.timedelta(days=1)
def timestamp_to_datetime(timestamp):
# type: (float) -> datetime.datetime
return datetime.datetime.utcfromtimestamp(float(timestamp)).replace(tzinfo=utc)