These are the past maintenance this month (in EST time)

November 15th 4am-6am
November 11th 11pm-3:20am
November 8th 3:15am-7am
November 7th 4am-6am
November 4th 12am-4am
November 1st 3am-3:55am

Only 2 of the 6 are during the time you mentioned.