Big Clock is a simple application that displays a floating clock which can be made large enough to be easily seen from across the room. This is ideal for users who need to keep track of time at a glance while moving around at a distance from the computer's display. Big Clock's primary interface is a status item menu located in the menu bar. The clock's display can be configured via a preferences dialog. Color, transparency and size can all be adjusted.

Big Clock also can do very basic session timing and alert you at specific intervals, via your configured system alert settings. This can prompt you to make sure time is not getting away from you.

Big Clock supports following your 12hr or 24hr time display preferences configured in the System Preferences -> Locale & Region. Or, you can override this setting for specific needs.

What’s New

Version 2

Updates for Mojave
Fixed minor bugs.
Added menu item to center clock on screen. This is helpful if the clock goes entirely off screen.

Ratings and Reviews

3.9 out of 5
9 Ratings

9 Ratings

RichInAZ ,

Very useful without being intrusive

I find the system time display at the top right of the toolbar to be a bit too small to notice, so I’ve been looking for somethnig to better fill my needs. Big Clock is excellent and does exactly what I want. I’ve configured it to display the current time in the lower right corner of my 27” display where it doesn’t interfere with whaever apps I have open. I picked a medium lavender color that shows well against white or gray (the background of most things I ave open). The time now floats above all other windows at a size that is easy to read but doesn’t distract from whatever I’m doing.

EK writer ,

useful for desk jobs

This app is super easy to install and to use and adjust how you like it. I keep the app running on my desk top. For my job I write all day long at my computer and i sit for too long. So the big clock in the middle helps me remember what time it is, and the reminder feature reminds me every hour to get up and take a break. I am taking better breaks now, stretching my legs. I also have a better idea of how long it takes me to complete projects because the clock keeps the time in my awareness. I am a creative person and never know what time it is.

Mr. Metal Train ,

Creative Clock

Exactly what I was looking for since the Menu Bar clock is way too small for my 71 year old eyes. I like the ability to change the size and color of the display.


Sandor Szatmari
821.9 KB

OS X 10.11 or later, 64-bit processor



Age Rating


  • Family Sharing

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