This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

When I add a new task, the due date is off by one day

  • 1 reply
  • 1 has this problem
  • 2 views
  • Last reply by Matt

more options

In Thunderbird 68, when I try to create a new task with a due date, and save it, the task then appears on my calendar on the FOLLOWING day instead of the date I selected. For example, if I choose 1/3/2020, then click "Save and close", the date on the task (on both Calendar and Task tabs) becomes 1/4/2020.

This happens when creating tasks from either the Calendar or Tasks tabs. To fix it, I have to double-click the task to edit it, then re-select the correct date and save, and then it retains the correct date.

Why is it doing this?

In Thunderbird 68, when I try to create a new task with a due date, and save it, the task then appears on my calendar on the FOLLOWING day instead of the date I selected. For example, if I choose 1/3/2020, then click "Save and close", the date on the task (on both Calendar and Task tabs) becomes 1/4/2020. This happens when creating tasks from either the Calendar or Tasks tabs. To fix it, I have to double-click the task to edit it, then re-select the correct date and save, and then it retains the correct date. Why is it doing this?

All Replies (1)

more options

are your tasks synchronized to say google or another web provider? It might be your time zone is not set correctly in the web page your syncing to.