Date format issue resulting into weird output

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Posted on by Daniël

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Good day all,

For a datepicker, I want to force a certain format and turn it into a text, using the following code:

Collect(
 Collection,
 {
 Date: Text(DateTimeValue(I_Date, "en"), "m/d/yyyy", "en")
 }
);

Now for most, including me, this works perfectly. I enter a date on the left and on the right appears the date in a gallery, displaying the collection.

However, one of my users struggles when entering dates with double digit months. For example, when she selects the date October 21st 2023, which shows in the date picker as '10/21/2023' (as it should), but then the date pops up in the gallery as '09/10/2024'.

I have tried changing the format to 'mm/dd/yyyy', but the app keeps behaving the same for her.

Does anyone know how to overcome this issue? It's a really tough one for me to solve, as I am unable to replicate it myself and therefore can't test through trial and error easily.

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Building Power Apps

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timl 36,749 Super User 2026 Season 1 on at

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Hi @Daniël

This formula should return the correct value.

Collect( Collection, { Date: Text(I_Date.SelectedDate, "m/d/yyyy", "en-US") } );

If you're using a Date Picker control, the SelectedDate property will return the Date without you needing to parse it with DateTimeValue. The problem with your formula is that you're assuming the end user device is configured with a locale that uses date formats in month/day/year format.

I'm in the UK and this type of formula will not work for me as you can see below (it generates the 10/09/2024 value). Therefore, it's important to specify "en-US" as the locale since this uses the m/d/y format.

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Daniël 147 on at

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Hi @timl,

Thank you so much for your reply. We're already moving into the right direction. The only issue is that I now struggle with something else:
My user has inserted the date in the date-picker, only this time the output is '21-10-2023'. This is the correct date, but it is essential that it says '10/21/2023', as a specific format is required. I am not sure why it would convert back to the Dutch formatting, despite mentioning a US-format.

I am starting to wonder what formatting indications like "m/d/yyyy" and "en-US" are even doing at this point...

I tried combining our two codes as follows:
Collect( Collection, { Date: Text(DateTimeValue(I_Date, "en-US"), "m/d/yyyy", "en-US") } );

But then again, same issue as before. Do you know how to get it back into format?

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timl 36,749 Super User 2026 Season 1 on at

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@Daniël

If the requirement is to show the date in m/d/yyyy format in the date picker, the answer is to set the date format property in the date picker.

As I mentioned in my earlier post, I would strongly advise that you reference the SelectedDate property of the date picker control rather than call DateTimeValue.

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Daniël 147 on at

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You're helping me so kindly and I repay you by not even reading correctly. I have indeed used the .SelectedDate extension this time and tested it with my user this morning. This has solved the issue. Thank you!

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