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43 lines
954 B
43 lines
954 B
# encoding: utf-8
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"""
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Timezone utilities
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Just UTC-awareness right now
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"""
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# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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from datetime import tzinfo, timedelta, datetime
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# constant for zero offset
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ZERO = timedelta(0)
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class tzUTC(tzinfo):
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"""tzinfo object for UTC (zero offset)"""
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def utcoffset(self, d):
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return ZERO
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def dst(self, d):
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return ZERO
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UTC = tzUTC()
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def utc_aware(unaware):
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"""decorator for adding UTC tzinfo to datetime's utcfoo methods"""
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def utc_method(*args, **kwargs):
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dt = unaware(*args, **kwargs)
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return dt.replace(tzinfo=UTC)
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return utc_method
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utcfromtimestamp = utc_aware(datetime.utcfromtimestamp)
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utcnow = utc_aware(datetime.utcnow)
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def isoformat(dt):
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"""Return iso-formatted timestamp
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Like .isoformat(), but uses Z for UTC instead of +00:00
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"""
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return dt.isoformat().replace('+00:00', 'Z')
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