How do I subscribe a calendar without Google Calendar?

Android does not support calendar downloads natively. However, there are applications which do just this. One which works great is ICSx5. Once you have installed that (some devices have it pre-installed), proceed with these instructions.

Step 1
On the Calendars page, select a calendar you wish subscribe and tap Download.
On the <a href=\'calendars\'>Calendars</a> page, select a calendar you wish subscribe and tap <strong>Download</strong>.
Step 2
Adjust calendar settings if needed, then tap Add to My Calendars.
Adjust calendar settings if needed, then tap <strong>Add to My Calendars</strong>.
Step 3
You will be taken to Calendars page. On the calendar you just added, tap Download.
You will be taken to <a href=\'my_calendars\'>Calendars</a> page. On the calendar you just added, tap <strong>Download</strong>.
Step 4
If nothing happens, you do not have an application (such as ICSx5) to handle calendar downloads.

Otherwise you'll be taken to that app. Tap

If nothing happens, you do not have an application (such as <a href=\'https://icsx5.bitfire.at\'>ICSx<sup>5</sup></a>) to handle calendar downloads.</p><p>Otherwise you\'ll be taken to that app. Tap <i class=\'arrow right icon\'></i>
Step 5
Wait while the application downloads and validates the calendar.
Wait while the application downloads and validates the calendar.
Step 6
Tap
Tap <i class=\'check icon\'></i>