Resources from my talk.
Hello!
I hope that you enjoyed my talk at Swift Leeds, Don’t Let Time Zones Ruin Your Day (Days?).
Socials
| Handle | ||
|---|---|---|
 | Bluesky | @chriswu.com |
 | Mastodon | @MuseumShuffle@mastodon.social |
Sample Project For Custom Calendar and Date.FormatStyle
I made a sample project that uses the techniques I showed for using time zone specific Calendars and Date.FormatStyle.
Chart Alignment Problem
Here’s my blog post about my Swift Charts Alignment Problem.
Chart Accessibility Issue
Here’s my blog post about my Swift Charts Accessibility Issue.
Please Don’t Rain
I had these time zone issues developing my weather app, Please Don’t Rain.
Funny
If you want to watch a man descend into madness because of time zones this is a must watch. Thanks Bas for showing it to me.
Handy Tools
| Name | Description |
|---|---|
| Your Calendrical Fallacy Is… | If you’re feeling confident that you know a lot about time in general this website from Dave DeLong will humble you quickly. |
| Gosh Darn Format Style! | Handy reference for the date format styles you can use. |
| everytimezone.com | Incredibly useful site to see at a glance what time it is around the world. I use it often for testing when a particular day at a particular location comes to an end. |
| timeanddate.com | Another handy site with several useful tools. Their time zone converter is so helpful. |
| World Clock Time Zone Widgets | I started using this app when iOS only had analog clock widgets, which was not that long ago. iOS still doesn’t have a widget for showing multiple time zones with DIGITAL clocks. This app fixes that. |
iOS Dev Happy Hour
I’m one of the organizers of iOS Dev Happy Hour, a monthly online meetup that has been running continuously since 2020. We also hold in person events around Cupertino during WWDC. Feel free to join us and meet some great people if you haven’t done so already. We welcome people of all skill levels. If you’re an introvert on the fence about attending I can relate and would be happy to give insight into the event.
We also have a YouTube Channel!
Here’s an example of some of the expert speakers we’ve have. (We also put the spotlight on new devs also.)
CommunityKit
I’m one of the organizers of CommunityKit, a new in-person, three day, FREE event we held in Cupertino during WWDC25. We wanted to help bring the community together through events such as WWDC watch parties, meetups, and our crown jewel - the Indie App Fair. The Indie App Fair let indie developers show their products to the community. And we’re doing it all again in 2026!
Absolutely Shameless Rant
This isn’t time zone related, but rather just time.
I wrote this blog post in 2023 about how unpleasant it can be to use Apple apps/products sometimes if you’re like me and don’t like analog clocks. Some things are better, a lot of things aren’t. The Apple Watch has been out for over 10 years and I’ve never been able to get a watch face that I like. This kind of digital watch face would be standard on any other smart watch but Apple has decided that only Apple Watch Ultra users can have it. So as an owner of a series 11 I’m out of luck again.
If we’re not going to get third part watch faces at the very least please give us some real customization. Putting the (horizontal) time in the middle of my timekeeping device should not be a big ask.
Swift Leeds
Big thanks to the Swift Leeds team for giving me this opportunity!
Social icons by icons8.