WIll MDaemon be updating its time zone list. A lot of places in North America now have different time zones due to no longer following DST or switching to permanent DST. An example is all our computers are on a new "Manitoba TIme Zone" in Canada and Microsoft has added this time zone in Windows. Since this time zone is not available in MDaemon, we are getting popup messages in WebMail stating the time zones do not match and appointments follow webmail time zone and mail follows computer time zone and will be incorrect.
If MDaemon is not adding this fix right away, is there a way to patch it manually?
What vesion of MDaemon are you using?
MDaemon Webmail’s time zone list comes directly from Windows on the MDaemon server, so no MDaemon patch is needed. Please install the latest Windows Updates on the MDaemon server so that it also has the new Manitoba time zone. It should then appear in Webmail under Settings → Time zone. Once your users select it there, the “Time zone mismatch” message will stop and meeting invitation times will use the new rules. Until then, users can click “Dismiss” on the message and it will not appear again in that browser.
OK, my home PC is set to Manitoba time (-0500), the latest version of MDaemon is set to Manitoba time, my MDaemon User profile (user.ini) has the timezone flag removed so it uses the server timezone which shows up properly in the webmail personalize settings as UTC-05:00. I sent a test email from my GMail account to my MDaemon account at 8:14am. I look at the source upon receiving the email it has lines like "X-MDAV-Processed: mail.reelmedia.org, Sun, 01 Nov 2026 08:14:36 -0500" and "X-MDArrival-Date: Sun, 01 Nov 2026 08:14:35 -0500" but in the WebMail interface it lists the Date as 7:14am
I ended up changing the time zone to -05:00 Eastern Time with DST off and everything seem to work fine.
I don't think WebMail or Outlook know how to deal with the new Manitoba time zone even though it is also -05:00
I suspect your browser is causing it. Webmail shows dates and times in your computer’s time zone, and it relies on the browser’s built-in time zone information to do that. Manitoba’s move to permanent UTC-5 was added to the international time zone database on September 29, 2026. Browsers have not all picked it up yet. Until they do, they still treat Manitoba as Central time, which went back to UTC-6 on November 1. That is why the message shows as 7:14 AM. Other websites that show local times in the same browser will be off by the same hour.
Please run this quick check so we can confirm.
- Open the browser you use for Webmail and press F12 to open the developer tools.
- Click the Console tab.
- Copy the line below, paste it into the console and press Enter:
[Intl.DateTimeFormat().resolvedOptions().timeZone, new Date().getTimezoneOffset(), new Date('2026-11-01T13:14:36Z').toLocaleString('en-US',{timeZone:'America/Winnipeg',timeZoneName:'shortOffset'})].join(' | ')
The first time you paste, Chrome, Edge and Firefox may show a warning and block it. If that happens, type allow pasting, press Enter, then paste the line again.
- Reply with the line it prints. Please also tell us which browser and version you are using (in Chrome or Edge: Settings > About).
The result has three parts separated by |. For a browser that is up to date for Manitoba, it looks like this:
America/Winnipeg | 300 | 11/1/2026, 8:14:36 AM GMT-5
If the last part says 7:14:36 AM GMT-6, or the middle number is 360, your browser doesn’t have the Manitoba change yet. That explains the time shown in Webmail.
If the browser is the cause, setting the time zone to eastern as you have already done is probably the best solution until your browser updates.
If the check shows your browser is up to date (8:14:36 AM GMT-5 and 300) and Webmail still shows the wrong time, please let us know and we’ll look into it further.
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