How to change subscribed calendar refresh interval

Have you checked lately?  Windows Phone Central is reporting that GDR2/Amber is live right now.  Maybe try a manual update now.

CardDAV/CalDAV support was added to WP8 with the GDR2/Amber update.  I haven't verified it personally, as I'm still syncing manually through Outlook.  But there is now a selection in "add an account" for adding a Yahoo account.  Maybe that will work for you.

Wish I could get the GDR2/Amber update. AT&T has been dragging their feet on rolling out for over a month.  :-(

I feel your pain.  I gave up too.  I now sync via Outlook.  Diane Poremsky has a nice vba app that copies new calendar items to a second calendar that works for a lot of people.  There are other vba apps out there that will sync your calendars in Outlook.  Amazing, though, that MS hasn't any solution.

 

Jim

Thanks for the info. Unfortunately I don't use Outlook on the PC. I just have a Windows Phone 8 that I wanted to sync with a central calendar using Outlook.com. Unfortunately a couple of external calendars that cant sync timely is my problem.

Thank you for that information, JimFekete.  Unfortunately, I have an HTC Trophy cell phone with Windows Phone 7.5 (MANGO) install on it.  So, I wouldn't be able to utilize the CardDAV support in WP8.  I love my Trophy, mainly because there is an awesome extended-life battery and back cover available that I bought for it, couldn't find such a battery for the latest Nokia or HTC WP8 models, and I only use my phone for phone calls and email.  So, I don't need all the buzzers, bells, and wistles that come with the newer WP8's.  I'll just have to keep manually entering in my calendar dates that I want on my phone calendar, directly on the Outlook phone calendar.  It just would have been nice to just switch right on over to the Yahoo calendar, while I'm already conveniently in there reading my email, and type/update the calendar dates right in there with a full PC keyboard.  Oh, well..  maybe one day Yahoo will come out with their own cell phone and OS.

CardDAV/CalDAV support was added to WP8 with the GDR2/Amber update.  I haven't verified it personally, as I'm still syncing manually through Outlook.  But there is now a selection in "add an account" for adding a Yahoo account.  Maybe that will work for you.