Available in preview for Looker connections to Snowflake or Google BigQuery databases, Looker supports custom...

Available in preview for Looker connections to Snowflake or Google BigQuery databases, Looker supports custom calendars, such as fiscal or retail calendars. The custom calendar feature lets your Looker developers create a LookML model of a custom calendar table in your database and then create custom calendar dimension groups that use the custom calendar. Your end users can then create Explore queries using the custom calendar dimension timeframes.

In addition, your LookML developers can create period-over-period measures based on custom calendar dimension groups.