Wrong Date and Time displayed once a post has been submitted

[CeciliaHinga]

Describe the bug
When one enters a certain date and time on the date and time field type, it changes once the postcard has been submitted and you get a different date and time from the one you entered. While testing this, I have had different results.

Results

• I enter the date and time on my postcard, once the response has been submitted the date is reverted back to the day before and the time is 3hrs behind.
• When i do it again with a different date and submit it, i get the correct date but wrong time(3hrs behind)
• When i edit the second result (point 2 above☝️) , the date changes to the day before and you get the wrong time.
• When i edit again for the second time, i get the right date and wrong time.

The only thing i am 100% sure about is, the time is reverted back 3 hrs all the time. That is consistent

Where was the bug observed
Production, ushahidi.io

To Reproduce
Steps to reproduce the behavior:

1. Click on the + icon to submit a response to a survey that contains date and time as a field response.
2. Enter the date and time
3. Click on submit
4. See error
5. To edit, click the edit button or the three dotted icon on a postcard and change the date and time.
6. Click save
7. See error

Expected behavior
The date and time displayed should be the one entered by a user upon submission with information about the timezone.

Reason of this bug
The times are in fact saved in UTC but does not include timezone and are displayed in UTC without the timezone-information.

Is there a workaround? What is it.
No

Screenshots
Date and time entered

Date and time displayed

Desktop Hardware Details (please complete the following information):

• OS: [iOS]
• Browser [Brave]
• Version [1.11.104 Chromium: 84.0.4147.105 (Official Build) (64-bit)]

Aha! Link: https://ushahiditeam.aha.io/features/PROD-60

[Angamanga]

Closing in favour of #4162