Raid Reset Time had been changed with ninja patch by Anet. It's no longer 8:30 UTC, much earlier. Weekly key from low level personal story . Looks like it reset with a weekly server reset. I didn't test it early enough to know if it's based on the guild mission reset or the world vs world reset.

The server's daily reset IS every 24 hours. yamirashi • 8 yr. ago. Only if you actually started your run before reset and finished it exactly as the server reset happened, in all other cases it will be less than 24 hours before you can get credit again :D. Maybe only a few minutes shorter, but its not a "full 24 hours".
\n \n \n guild wars 2 weekly reset
Do these reset? Like daily, weekly, monthly, or not at all? I haven't found any information (yet) about if these reset or not. Don't want to find out I bought out everything of one item and that's all I can ever get. Otherwise this Wizard's Vault just got a lot worse lol.
Sunday: Easy PvE Bounty (300 favor) + Medium Trek (400 favor) + Medium Puzzle (400 favor) + Hard Puzzle (500 favor) So that's 800 Wednesday, 1600 Sunday, no overlapping missions. The mission tab shows the guild as having gotten credit for all the missions (shield icon is glowing). The cap numbers also confirm this.
Guild Wars 2 > News >Updated! Changing WvW Match Reset Time. Updated! Changing WvW Match Reset Time. by Devon Carver on April 29, 2013. We changed the reset times for WvW matchups. Going forward, the North American WvW matchup will reset Friday at 6:00 PM PDT, which is 01:00 UTC Saturday, and the European matchup will reset at 18:00 UTC. . 140 335 290 330 65 16 146 440

guild wars 2 weekly reset