iPhone Screenshots


Klok is a time zone converter widget that helps you stay on time with people you care about in different time zones.
Quickly glance and convert time by swiping down from anywhere, your phone doesn't even have to be unlocked.

● Add the time zones you most commonly use
● Add the Klok widget so you can swipe down at any time to access
● Tap on a time zone and convert time instantly
● See the time converted across all time zones

What's New

Version 1.2.6

Bug fixes

Ratings and Reviews

4.7 out of 5

1.1K Ratings
1.1K Ratings

Widget not working


Thank you for fixing this! Kook is wonderful again!!

I've used Klok pretty much since it's inception and have found it invaluable. Recently, though, the Notification Center widget is not working. It's there--but it's completely blank, showing none of the times or locations. It's just a big blank square.
As others have pointed out, there is no way to contact the developers. I'm hoping that they will see this and offer some help.

Developer Response

Hey nutragirl — we found a bug in our code that causes this. We’ve fixed it and now submitting an update. Hopefully you should have the update in the next couple of days. Thanks for reporting this.

Bug on the +1/-1 indicator


Almost perfect but the +1/-1 indicator moves from 1 clock to another after adjusting timezones in the notification widget. After adjusting, swipe to the left to access the notification center then swipe to the right to access the widgets. Also, would it be possible to make the +1/-1 indicator permanent like the previous version?

after a couple of updates, the +/-1 still moves when using the time converter in the widget. same as above.

Developer Response

We've noticed a few users pointing out issues with the +1/-1 indicator — looking into it 🙂

I love it! Minimalist and yet more than useful!


I love this app! Very minimalist, I use it every single day without even paying attention! The widget is great. I live in the US, my family is in France, got friends in Asia, anyway, I was spending my time calculating their time of the day... haha! Thank you so much for creating this very simple app that helps way more than you think ;)


Buuuk Private Limited
44.6 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Italian, Japanese, Simplified Chinese, Traditional Chinese
Age Rating
Rated 4+
© buUuk Pte. Ltd.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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