Use same date and time format as in my computer's settings
Many people like to use English as their display language, but get confused with the US date format: 11/06 is October 6 in the US, but June 11 in many other countries. Why not display the date according to the setting in Windows?
Same goes for time, of course, where many use 24 hour format instead of am and pm.

The team is working on fixing date/time format to honor your computer settings. Please stay tuned for further updates.
288 comments
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Divyesh Chapaneri commented
Same issue here in Australia. Microsoft?
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Per Jarnehammar commented
I have selected Swedish as interface language and hence the date and time format should follow the Swedish standard which is YYYY-MM-DD and 24-hour clock. But the time in the calendar is still displayed in 12 hour format.
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Anonymous commented
I'm getting a European theme here..
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Anonymous commented
For UK also - month first on the date stamp very confusing for us
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TH commented
The first comment from MS is from 2017-06-22 - 8 months ago and still not done. First day of the week/year, date, time, decimals and thousands separators...
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TH commented
Use OS settings for desktop app - calendar, date/time and numbers format
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Phil malone commented
Microsoft needs to make this a minimum requirement for all of its systems. Backwards dates (yes, mm/dd/yyyy is incorrect for every country in the world besides the USA) causes confusion and inefficiency. It's tiring that version 1.0 of every Microsoft product fails to take this into consideration, as if they'd never considered it.
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Charles Yeomans commented
Really all dates should be defaulted to ISO8601, then there is no confusion.
https://en.wikipedia.org/wiki/ISO_8601
Then there is no ambiguity, and text date extracts will sort in order. -
Ben commented
This is really annoying! Countries outside the US don't use the weird MM/DD/YY format!
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Louise commented
Same problem for us, this is both corrupting data and confusing people!
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Roland Weigelt commented
Please fix this.
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[Deleted User] commented
Honor ISO8601 or at least follow my OS-settings
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T commented
Allow me to change the format of the way the date is displayed when looking at the document access history. The date format seems to be in US style, with month first. I want to see day first
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Michael van Oostrom commented
Working on it since December 15th 2017, wow.......... How hard can it be?
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Jimmy Butcher commented
Date seems to format to dd-mm-yyyy after I changed the language setting for teams - but it would indeed be much more elegant if the app just honoured my regional settings.
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Nano mandrake commented
Please allow to change date and time format to be different from the specified language. In our company we mainly use english, but being in a european country everyone prefers dd/mm/yyyy and 24h format, but most of us use english as display language
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Sean Ellis commented
This has already been discussed at https://microsoftteams.uservoice.com/forums/555103-public/suggestions/16935160-use-same-date-and-time-format-as-in-my-computer-s and MS say it's "under review" despite proper date/time format handling listed as best practice in their own UI guidelines.
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HH commented
On a computer set with 24H time, Teams displays times in 12H time. Teams should match the computer display for time.
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Sean Ellis commented
Ooh, look - Microsoft's own UI guidelines instruct app developers to respect the user's choice of date and time format:
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Dates and times
Don't hard-code the format of dates and times. Respect the user's choice of locale and customization options for the date and time formats. The user selects these in the Region and Language control panel item.
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https://msdn.microsoft.com/en-us/library/windows/desktop/dn742478(v=vs.85).aspx
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Jamie Thomson commented
Its a minor irritation but an irritation nonetheless. To me, 11/4 is the 11th April, not 4th November which teams seems to think it is. Please fix.