The time zones used on ART19 varies by profile and feature, as outlined below:
Series Profiles
Publish time: When publishing an episode the time zone, is set to your Browser's current time zone. This is usually the time zone you are currently in, but this can be different if using a VPN or similar.
Stats: Stats are displayed in UTC.
Ad Ops Profiles
Campaign run (flight) time: When scheduling a campaign, the time is set to the profile's specific time zone. This time zone can be changed in the profile's settings found in the left-side of the profile. This is displayed at the bottom of the Run card.
Stats: Stats are displayed in UTC.
Custom Reports
All custom reports are in UTC unless otherwise stated/requested.