Countdown · iPhone Lock Screen

How to Add a Countdown Widget to Your iPhone Lock Screen

  • About 4 minutes
  • iPhone
  • Lock Screen
  • Updated September 5, 2026

To show days remaining on your iPhone Lock Screen, save an event in Lumiday, touch and hold your Lock Screen, then open Customize and add a Lumiday widget. Follow the five illustrated steps below.

Before you start, install and open Lumiday and save the date you want to display. The screenshots use Simplified Chinese and a sample trip home; use your own birthday, anniversary or travel date. On-screen labels may differ by language and iOS version.

What it looks like

Lumiday countdown widget showing days remaining on an iPhone Lock Screen
Once set up, wake your iPhone to see how many days remain.

This guide uses “Mid-Autumn Trip Home” as an example. Replace the name and date with your own event.

Step one

Create a countdown

Open Lumiday, enter an event name, choose the target date, then tap Save.

Enter an event name and date in Lumiday
Step two

Customize your Lock Screen

Return to the iPhone Lock Screen. Touch and hold it for about two seconds, then tap Customize.

Touch and hold the iPhone Lock Screen and tap Customize
Step three

Tap Add Widgets

Tap the Add Widgets area below the clock to open the widget list.

Open the widget area below the Lock Screen clock
Step four

Find Lumiday

Find and tap Lumiday in the widget list to see its available Lock Screen widgets.

Find Lumiday in the iPhone widget list
Step five

Choose a small or rectangular widget

The circular widget is ideal for quickly checking the remaining days. The rectangular widget also shows the event name and date. Add one, then tap Done.

Choose a circular or rectangular Lumiday Lock Screen widget
Frequently asked questions

About countdowns on the iPhone Lock Screen

What if there is no room for another Lock Screen widget?

Remove an existing widget in Lock Screen customization to make room for Lumiday. You can also choose the smaller circular widget.

Can the iPhone Lock Screen show a countdown?

Yes. After adding a Lumiday Lock Screen widget, wake your iPhone to see the remaining days.

What is the difference between the two widget sizes?

The circular widget focuses on the remaining days. The rectangular widget also shows the event name and date.

Do I need to add both widget sizes?

No. Choose the one that best fits your Lock Screen layout.

Do I need an account to use Lumiday?

No. Lumiday requires no account and contains no ads. Your important dates stay on your device.

Lumiday

Keep the date you want to see on your Lock Screen.

Lumiday is a countdown and date counter app for iPhone.

Download on the App Store