Lightning Calendar

Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey email. .

Free
Open Source
Mac OS X
Windows
Linux
Thunderbird
SeaMonkey

organize your schedule and life’s important events in a calendar that’s fully integrated with your thunderbird or seamonkey email. manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

lightning brings the sunbird (sunbird is discontinued) calendar to the popular email client, mozilla thunderbird and the seamonkey internet application suite. since its an extension, lightning is tightly integrated with thunderbird or seamonkey, allowing it to easily perform emailrelated calendaring tasks.

Links to official Lightning Calendar sites

Features

CalDAV CardDAV

The Best 1 Lightning Calendar Alternatives

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VueMinder Calendar

Take control of your schedule and get reminded wherever and however you want. Instantly access your appointments, tasks, and notes with a simple glance at a transparent calendar that sits right on your Windows desktop.

Freemium Windows

Portable Sync with Google Calendar

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Lightning Calendar

Links to official Lightning Calendar sites

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The Best 1 Lightning Calendar Alternatives

VueMinder Calendar

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