Time Difference Distance

Helena — Sydney Time Difference: 18 hours

Helena timeSydney time



MST (UTC -7)



AEDT (UTC +11)
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Helena, Montana, USA is 18 hours behind Sydney, NSW, Australia


Helena — Sydney time difference changes (based on dates DST begins and ends):
DateTime difference
10 March 2019 to 06 October 201916:0 hours
06 October 2019 to 03 November 201917:0 hours
03 November 2019 to 05 April 202018:0 hours


Helena time conversion

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Sydney time conversion

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