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Wordwall 24 Hour 12 Hour Clock Match?

Updated · Standard formula, shown below

The calculator for this page is switched off while it is checked. The formula is below, and the worked example in the article shows how to use it by hand.

Wordwall 24 Hour 12 Hour Clock Match?

Wordwall does not have a single built-in game called “24 hour 12 hour clock match,� but you can create one in seconds using its free “Match Up� template. You enter pairs (e.g., “14:00� and “2:00 PM�), and students drag each 24‑hour time to its 12‑hour equivalent. The result is an interactive matching activity that works on any device, and you can switch between a drag‑and‑drop version and a click‑to‑match version.

Formula

The matching logic is simple: convert both times to minutes after midnight, then compare. For a 24‑hour time H24:M, minutes = H24 × 60 + M. For a 12‑hour time H12:M AM/PM, first convert the hour: if it is PM and not 12, add 12; if it is AM and it is 12, change to 0. Then minutes = H12 × 60 + M. If the two minute counts are equal, the match is correct.

Worked Example

Suppose you want to check whether “14:00� matches “2:00 PM�.

  1. Convert 14:00: 14 × 60 + 0 = 840 minutes.
  2. Convert 2:00 PM: PM and hour ≠ 12, so add 12 → 14. Then 14 × 60 + 0 = 840 minutes.
  3. Both are 840, so the match is correct.

The calculator above lets you test any pair. Enter a 24‑hour time and a 12‑hour time, and it tells you if they are the same moment.

How to Create the Match on Wordwall

Creating the activity takes about two minutes:

  1. Log in to Wordwall and click “Create Activity�.
  2. Choose the “Match Up� template.
  3. Enter your pairs. In the left column, type a 24‑hour time (e.g., “00:00�). In the right column, type its 12‑hour equivalent (e.g., “12:00 AM�).
  4. Add as many pairs as you need – 8 to 12 is typical for a classroom drill.
  5. Click “Create�. Wordwall automatically generates a drag‑and‑drop game. You can also switch to “Match Up� (click version) from the “Switch Template� menu.

You can then assign it as homework, play it live in class, or embed it on your school website.

Choosing the Right Template

Wordwall offers several templates that work for time matching. “Match Up� is the most direct – students drag a 24‑hour time onto its 12‑hour pair. “Find the Match� shows a grid of times and students tap the matching ones. “Group Sort� lets you sort times into “AM� and “PM� categories, which is useful for teaching the concept before matching. For review, “Quiz� works well with multiple‑choice questions like “What is 15:30 in 12‑hour time?�

Each template has the same underlying pair data, so you can switch without re‑entering everything.

Common Mistakes and How to Avoid Them

The most frequent errors come from confusing 12 AM and 12 PM. 12:00 AM is midnight (00:00), and 12:00 PM is noon (12:00). When converting, remember:

  • 12:00 AM → 00:00
  • 12:00 PM → 12:00
  • 1:00 PM → 13:00
  • 11:59 PM → 23:59

Another common issue is mixing up the order – writing “2:00 PM� on the left and “14:00� on the right is fine, but be consistent. If you use “14:00� as the prompt, make sure the answer is “2:00 PM�, not “2:00�.

Using the Calculator to Double‑Check

Before you publish your Wordwall set, test every pair with the calculator above. Enter the 24‑hour time and the 12‑hour time; if the answer is “Match found? 1�, the pair is correct. This is especially useful when you have many pairs or when you are working with times near midnight.

For example, “00:00� and “12:00 AM� should match, while “00:00� and “12:00 PM� should not.

Frequently Asked Questions

Can I make a Wordwall activity that shows both clocks at once?

Yes. You can use the “Match Up� template with images instead of text. Upload pictures of analog clocks for the 12‑hour side and text for the 24‑hour side. This is a great way to teach reading analog clocks alongside digital 24‑hour time.

Is Wordwall free for teachers?

Wordwall offers a free tier that lets you create up to five activities. You can still play them with your class, but some features like printing and sharing via link are limited. Paid plans remove those limits.

How do I share the activity with students?

After creating the activity, click “Share� to get a link or a QR code. You can also assign it as homework by setting a due date. Students do not need an account to play – they just open the link.

What is the best way to teach 24‑hour time to kids?

Start with the concept of AM and PM, then show that 24‑hour time simply counts from 0 to 23. Use a number line or a clock that shows both scales. Practice with real‑life examples like train schedules or movie times. The matching activity is a good drill after the concept is understood.

Can I use the calculator to convert any time, not just for Wordwall?

Absolutely. The calculator works for any 24‑hour and 12‑hour pair. It is a handy tool for checking your own conversions when creating worksheets or study materials.

Related

Formula used
in t | 24-hour time (HH:MM) | - | 14:00 | 0
in d | 12-hour time (HH:MM AM/PM) | - | 2:00 PM | 0
out match | Match found? | - | if(t==d,1,0) | 0

Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.