Also available in the Mac App Store here 

TinyAlarm is a tiny alarm clock for your menu bar. It will play your chosen sound at some time in the near future. All of the configuration is done using the status menu item. Clicking around should reveal just about everything there is to know about Tiny Alarm. Please download and give it a try.

TinyAlarm is good for when you're gaming or programming, but still have to get to class. It will also help you avoid missing your bus, or burning your pizza, or showing up late for meetings.

Requirements

TinyAlarm requires Mac OS X 10.4 or later.

License

TinyAlarm is shareware. After 30 days please purchase the software to support its evolution.

Main Menu

Most of the functionality of TinyAlarm is accessed from the main menu. Choose a time from the menu to set the alarm.

Other Times

To choose a different time, select the custom time picker from the Other menu. Drag the minute hand of the clock to the desired time. By default, the clock hand jumps in 5 minute increments. To get 1 minute precision, hold the Option key while dragging the minute hand.

You can also pick a custom time using the date picker, or by choosing the number of minutes.

Preferences

In the preferences window, you can change the alarm sound using the Alarm Sound menu. You can choose from System sounds or sounds in your personal library (~/Library/Sounds)

Using the Number of Rings menu, you can choose how many chimes sound when the alarm goes off.

The alarm speed can be set to fast or slow in the Alarm Speed menu.

Choose the Use Text Reminders option to enable text reminders on alarms. This functionality is described below.

To edit the list of alarm times, click the Edit Alarms button. This functionality is described later.

When an alarm goes off, TinyAlarm will sound the chimes according to your preferences. If you use the Repeat Until Cleared option, the alarm must be cleared when it goes off. If you do not clear the alarm, it will periodically chime again until it is cleared. By default, clicking the alarm icon in the menu bar will clear the alarm, and a control-click will snooze. You can reverse this setting (click to snooze, control-click to clear) by selecting the Control-click to Clear option.

To automatically start TinyAlarm when you login, check the Launch at Startup checkbox.

Text Reminders

You can optionally add a text reminder to alarms. When you set an alarm, you will be prompted to enter the reminder. This will be displayed in the alarm menu and when the alarm goes off. In addition, this text will be displayed in a Growl notification if you have Growl installed.

Growl is available here.

Snooze

When the alarm goes off, you have the opportunity to snooze. This will reset the alarm to a short time in the future. By default, the snooze time is 5 minutes. The snooze time can be changed in preferences.

To snooze, you can control-click the alarm icon (or click the alarm icon, as described earlier). In addition, TinyAlarm will show a window where you can either clear the alarm or snooze.

To clear the alarm, click the X. To snooze, click the Z.

Edit Alarms

You can edit the list of alarms that are presented in alarm menu. Push the Edit Alarms button in the preferences panel (described above) to enter the alarm editor.

You can add or remove alarms, or rearrange them.

Alarm times that are "Exact" will simply add the minutes or hours to the current time. Alarm times that are "About" (for example, "About 15 minutes"), are rounded off. The shorter alarms ("About 5 minutes") are rounded off to the nearest 5 minutes, and longer alarms are rounded off to progressively larger intervals. The longest alarms ("About 3 hours") are rounded off to the nearesrt hour.

You can also add default reminder text. If you have text reminders enabled, this will be the default choice. If not, then this will automatically become the reminder text with no further input.