Historical early closing times for U.S. stocks

I have historical intraday price data and want to filter out prices outside regular trading hours, which end earlier than 4:00 PM on a few days per year, such as the Friday after Thanksgiving and Christmas Eve. The NYSE site says

* Each market will close early at 1:00 p.m. (1:15 p.m. for eligible options) on Friday, November 27, 2020, Friday, November 26, 2021, and Friday, November 25, 2022 (the day after Thanksgiving). Crossing Session orders will be accepted beginning at 1:00 p.m. for continuous executions until 1:30 p.m. on these dates, and NYSE American Equities, NYSE Arca Equities, NYSE Chicago, and NYSE National late trading sessions will close at 5:00 pm. All times are Eastern Time.

** Each market will close early at 1:00 p.m. (1:15 p.m. for eligible options) on Thursday, December 24, 2020. Crossing Session orders will be accepted beginning at 1:00 p.m. for continuous executions until 1:30 p.m. on this date, and NYSE American Equities, NYSE Arca Equities, NYSE Chicago, and NYSE National late trading sessions will close at 5:00 pm. All times are Eastern Time.

Can anyone share a list of days when the stock market closed before 4pm, and at what time it closed on those days?

Submitted November 10, 2020 at 09:57AM by Beliavsky
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