How To Force Refresh Google Calendar

Google Calendar
Google Calendar caches remote calendar URLs for some time – not helpful if you want to verify a change.

This can be circumvented by altering the URL while requesting the same content. Adding a query parameter (or attempting to add another one) will cause Google to treat the calendar as a new feed.

Here’s an example with the UK holidays calendar feed from CalendarLabs:

Original Calendar URL:


Updated Calendar URL:


And another example with an updated query string from Facebook:

Original Calendar URL:


Updated Calendar URL:


Any string can be used instead of noCache, as Google Calendar just remembers the full URL. So next time you want to force an update, use noCache-2, noCache-3 etc.

If the calendar’s URL already has query parameters, or adding another parameter breaks the feed, the URL can be shortened with (or any URL shortener). This is less useful, as you’re relying on the query shortening service always being available.

Liked this post? Follow this blog to get more. 

  • Leonidas Tsampros

    nice hack :) thanks!

  • Adam

    Great.  Thank you so much.  

  • Michael Sverdlin

    Awesome and works. I wish gCal had a refresh button. Thanks!

  • Mauro

    WORKS! Thanks!

  • Pingback: iCalendar - Quirks From the Trenches | Sveder's

  • Dez

    Wow, awesome!!! Thank you. )

  • Shane Cossever

    Didn’t work for me :(. It can’t pull the google calendar as soon as I add &nocache to the URL. Halp?

  • Steeve.c

    Didn’t work for me ethier

  • Andy

    Does adding a new calendar with the updated URL work?

  • g37mike

    Try ?noCache

  • Gilbert

    Finally, a solution that WORKS – for now.