Reminders are received at the wrong time or on the wrong day.
Your timezone setting in Remember The Milk does not match the system timezone on a computer where you use the site.
Check to make sure that your timezone on the Settings screen in Remember The Milk matches your system timezone on any computers where you use the site. It's particularly important to check the location of the timezone to make sure that they match as well (to ensure that daylight savings time is observed correctly for your account).
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