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-rw-r--r--src/isodate/isotime.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/isodate/isotime.py b/src/isodate/isotime.py
index f0003d6..091ae18 100644
--- a/src/isodate/isotime.py
+++ b/src/isodate/isotime.py
@@ -123,7 +123,8 @@ def parse_time(timestring):
int(groups['tzhour'] or 0),
int(groups['tzmin'] or 0))
if 'second' in groups:
- second = Decimal(groups['second'])
+ # round to microseconds if fractional seconds are more precise
+ second = Decimal(groups['second']).quantize(Decimal('.000001'))
microsecond = (second - int(second)) * long(1e6)
# int(...) ... no rounding
# to_integral() ... rounding