How to Turn On Week Numbers in the iPhone Calendar: A Step-by-Step Guide

Do you ever find yourself losing track of which week you’re in? Or maybe you’re a planner who likes to see the big picture of your month. Either way, if you’re an iPhone user, you can easily switch on week numbers in your iPhone calendar. It’s a quick setting change that can make a big difference in organizing your time. Let’s dive into how you can do this.

Step by Step Tutorial on How to Turn On Week Numbers in the iPhone Calendar

Before we jump into the steps, know that turning on week numbers will allow you to see which week of the year it is right next to the date in your iPhone calendar. This is super helpful for keeping track of your schedule, especially if you have deadlines or events that are set by week numbers.

Step 1: Open Settings

Open the Settings app on your iPhone.

The Settings app is the one with the gear icon. You can usually find it on your home screen or in your app library.

Step 2: Scroll to Calendar

Scroll down and tap on ‘Calendar’.

‘Calendar’ is usually found after ‘Mail’ and ‘Contacts’ in the Settings menu.

Step 3: Tap on ‘Week Numbers’

Once in the Calendar settings, find the ‘Week Numbers’ toggle and tap on it.

The ‘Week Numbers’ option is towards the bottom of the Calendar settings, so you might need to scroll a bit to find it.

Step 4: Switch on Week Numbers

Switch the Week Numbers toggle to the green ‘on’ position.

You’ll know it’s on when the toggle turns green. If it’s not green, then week numbers won’t show up in your calendar.

After you’ve turned on week numbers, you’ll immediately see the changes in your Calendar app. Each week number will appear to the left of the weekly view and to the right of the date in the monthly view. It’s a small change, but it can be incredibly useful for staying on top of your schedule.

Tips for Turning On Week Numbers in the iPhone Calendar

  • Make sure your iOS is updated to the latest version to ensure you have access to the latest calendar settings.
  • If you have multiple calendars synced to your iPhone, turning on week numbers will apply to all of them.
  • Week numbers are based on the ISO week date system, which means it starts with the week containing the first Thursday of the year.
  • Remember that not all countries use the same week numbering system, so double-check if you’re planning something internationally.
  • Turning on week numbers can be especially helpful for students or professionals who operate on a week-by-week basis.

Frequently Asked Questions

Will turning on week numbers affect my existing events?

No, it won’t affect any of your existing events. The week numbers simply appear as an additional reference point in your calendar.

Can I turn off week numbers later if I don’t like it?

Absolutely, you can turn off week numbers at any time by following the same steps and toggling the switch to the off (white) position.

Does this feature sync across all my Apple devices?

Yes, if you have your Calendar app synced across multiple Apple devices, the week numbers will show up on all of them once you turn it on from any device.

Are week numbers shown in all views of the Calendar app?

Week numbers are visible in the day, week, and month views of your Calendar app.

What if I don’t see the ‘Week Numbers’ option in my settings?

If you can’t find the ‘Week Numbers’ option, it might mean your iOS is not updated. Check for software updates in your Settings app.


  1. Open Settings
  2. Scroll to Calendar
  3. Tap on ‘Week Numbers’
  4. Switch on Week Numbers


Turning on week numbers in the iPhone calendar is a simple yet effective way to enhance your time management skills. It helps to keep a steady track of the weeks as they pass by, providing a clear reference for planning and organizing your events and tasks. Whether you’re a business professional, a student, or someone just looking to make life a little easier, this small tweak can make a significant difference.

Moreover, having week numbers displayed on your calendar can also aid in coordinating schedules with others, especially if they are also using the same system. It’s a common language for time management that transcends individual schedules.

So go ahead, give it a try! If you find that this feature doesn’t quite suit your needs, it’s easy to turn off. And if you have any other iPhone-related questions, there are plenty of resources and forums online where you can find answers and tips. Remember, your iPhone is a powerful tool – make the most of it!

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