# 'bundle exec rake db:migrate' taking a long time due to calendar migration

**URL:** <https://meta.discourse.org/t/bundle-exec-rake-db-migrate-taking-a-long-time-due-to-calendar-migration/287434>\
**Category:** Self-hosting\
**Created:** [December 4, 2023, 1:58pm UTC](https://meta.discourse.org/t/bundle-exec-rake-db-migrate-taking-a-long-time-due-to-calendar-migration/287434 "2023-12-04T13:58:11Z")\
**Posts on this page:** 1\
**Showing post:** 33

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**Author:** ![renato](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/renato/32/383632_2.png) [@renato](https://meta.discourse.org/u/renato)\
**Post date:** [December 5, 2023, 3:42pm UTC](https://meta.discourse.org/t/bundle-exec-rake-db-migrate-taking-a-long-time-due-to-calendar-migration/287434/33 "2023-12-05T15:42:25Z")

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> [@pfaffman](#):
>
> The root cause, I think, is a bug in the plugin that duplicated events when a timezone changed

We need to understand if this may still be a bug in the plugin or just something that happened in the past.

Can you confirm if the bulk of the duplicated entries is from the past or if there are still too many rows with a recent `created_at`?

Thank you!

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