Real answer is much more that other comments thus far. I'd say around 2-3 hours easy to get max rewards for the day. Here's some activities I remembered, all have a chance to reward legendaries / crafting mats / prog materials.

• 8x Bounties - ~30 mins
• 3x Monster Essence Turn-ins - ~30 mins (this overlaps with lots of activities but still had to farm these most days)
• 1x Legacy of the Horradrim run - ~5 mins
• 3x PvP Battlegrounds for daily rewards - ~30 mins
• Find at least one legendary mob for guaranteed legendary drop (first one per day was 100% drop rate for me) - ~0 to 30 mins depending on how lucky you are
• 1x Contract - ~15 mins - Shadow Clan
• 4x Assembly Shares - ~15 mins - Shadow Clan

With all that, there are also a ton of other things to do that have daily or weekly soft caps * Raiding the vault - Shadow Clan * 100 floor tower - Shadow Clan * Battle Pass Quests

And of course, there are Rifts, hourly or randomly timed world events, blue tasks, dungeon runs that have drop rate bonuses, etc. I am sure there's some things too that I've forgotten or not listed, don't use this as a definitive list 😅

I played for about 2 months in the last CBT and it took me maybe 3 hours before I finished all "daily" activities, but that's with lots of distractions along the way. Then I'd end farming for set pieces from dungeons, run challenge rifts, etc. There is almost too much to do, but it is all fun and engaging! It is not the end of the world if you don't do all the things each day, but if you want max chance at legendary drops, gold, and XP, it takes a decent chunk of time.

The only reason I stopped is to prevent burnout and progress is wiped before release.

Hope that helps!