Oct 15, 2026 — Dayparts now support a timezone source
7 days ago by Nick Amadeo
The dayparts object now supports an optional timezone_source field, which lets you choose which time zone your daypart schedule follows. This change is relevant for GET List campaigns.
Supported values:
user(default) - schedule hours follow each viewer’s local time zone.account- schedule hours to follow the account time zone associated with the campaign.
This is a non-breaking change, and existing integrations require no request changes. When you omit timezone_source on create, it defaults to user. When you omit it on update, the existing selection is preserved. Responses, including those from GET /developer/campaigns, now include the selected timezone_source alongside the schedule. The schedule format and all-hours behavior are unchanged.