I'm not sure if you've changed it since this comment, but I was able to find the < to go back to previous days which is such a cool feature!
I was also happily surprised to see I didn't lose my progress when I did that!
The puzzle was solved in 1m 25s without using any reveals.
Over the last few days I've being doing multiple puzzles a day and finally I caught up. Now I need to work out what do to for the next 4hrs and 28 minutes :D
I love how the news flows each day and you might get a clue for today from yesterdays news.