Bug: Incorrect timezone used in rendering dates in board view

humbled commented 2 years ago

Steps to reproduce the behaviour

Be in timezone very different to USA or GMT (I am GMT+12)
Add a date field to cards
Set a date on one card
Set the date field as visible on the board
See the date different on the board to what was set on the card. In my case, renders on the board 1 day later than in the card.

Expected behaviour

The dates match

Screenshots (optional)

Edition and Platform

Edition: Personal Desktop / Personal Server / Mattermost Boards (plugin)
Version: 5.1.0 (5.1.0.19939) / Server 6.4.1 / Board 0.14.0
Browser and OS: Chrome on Mac

Additional context (optional)

Add any other context about the problem here, and any notes about the severity:

Sev 2: Affects major functionality with a difficult or non-obvious workaround Poor user experience and all my due dates were out by a day. There is the workaround to set a 1-day earlier due date on each task, but that is for every card and high risk of getting that wrong so missing deadlines with this.

kamre commented 2 years ago

Hi @humbled, this issue can be reproduced by changing the location (and timezone) in Chrome Dev Tools.

@sbishel it looks like DateRange component used in the card dialog keeps the date in UTC so that server has UTC dates and client displays the date in local timezone.

But at the same time readonly date property type is rendered without any conversion from UTC to local timezone. This is the reason for the difference between the card dialog and kanban card.

wuwinson commented 2 years ago

Investigate - should we just show the same UTC date for everyone? Add time zone to all date properties? Auto-convert date/times based on local timezones? Investigate and clarify behavior.

humbled commented 11 months ago

Showing UTC datetime would be a subpar user experience IMHO. If you mean show localised time but UTC date - that would be even worse and plain wrong.

mattermost / focalboard