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icloud calendar times are 7 hours off

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My icloud calendar shows times 7 hours off on my macbook air, but not on my iphone using firefox or on my macbook air using safari.

My icloud calendar shows times 7 hours off on my macbook air, but not on my iphone using firefox or on my macbook air using safari.

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UTC timezone is used if you have privacy.resistFingerprinting set to true in about:config.

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I toggled it and quit/reopened and it didn't change.

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Make sure privacy.fingerprintingProtection.overrides is default empty in about:config.

Does it still happen in Troubleshoot Mode?