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My Thunderbird consistantly shows tomorrow's date on incoming and outgoing email. even though the system clock and Windows clock show the correct date. Help.

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My installation of Thunderbird appears to use a clock that is 24 hours ahead of the real time. For example messages received on December 25, 2014 are dated December 26.

Furthermore, when I replied to an incoming message today, December 25, the automated header stated that I was replying to a message received on December 26.

My computer's system clock and the Windows clock both show the correct date.

Is there any way to force Thunderbird to re-read the system clock, or any other way to reset Thunderbird's internal time?

My installation of Thunderbird appears to use a clock that is 24 hours ahead of the real time. For example messages received on December 25, 2014 are dated December 26. Furthermore, when I replied to an incoming message today, December 25, the automated header stated that I was replying to a message received on December 26. My computer's system clock and the Windows clock both show the correct date. Is there any way to force Thunderbird to re-read the system clock, or any other way to reset Thunderbird's internal time?

Chosen solution

Thunderbird uses your computer clock. It has nothing else to reference. I suggest that you double check your clock for the correct time and time zone. There is no reason to look at the bios to check the computer clock.

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All Replies (3)

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What time zone is your system clock set to? This is usually caused by an incorrect time zone setting.

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My system clock is set correctly to Hawaii standard time. This BIOS setting has remained unchanged for the past several years.

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Chosen Solution

Thunderbird uses your computer clock. It has nothing else to reference. I suggest that you double check your clock for the correct time and time zone. There is no reason to look at the bios to check the computer clock.