The addon is updated many times throughout the day. Depending on where you download the addon from, and your Patreon status you will have access to different data update rates:
RaiderIO Revered Client User: Four times per day (00:00 UTC, 06:00 UTC, 12:00 UTC, 18:00 UTC) - Support us on Patreon
RaiderIO Client User: Twice per day (06:00 UTC, 18:00 UTC) - Download the RaiderIO Client
Curse/Twitch: Once per day (06:00 UTC) - Download from CurseForge or use the Twitch Client
Note: Times are when the data begins generating. It usually takes an hour or so to generate. For RaiderIO Client builds they will be available within minutes after the update completes. For Curse builds it can take up to 12 hours before it's visible on their network.