Well, after discovering your method and exploiting it by messing with time as my laptop knows it to be, I feel that it's fair that I give some kind of review on the game.
Much like the section found in the newspaper, this game lives up to its name as it's a 'one day at a time' kind of game, It may be a bit of a puzzle at first, but once you get the hang of it, it becomes a minor issue to tackle and loses its thrill unless there's a lengthy time between this and the next set of puzzles. Everyday will present new puzzles, so it's best not to do what I did to acquire the medals.
One thing to note is your method to achieve the ultimate objective of opening the safe, because it actually hinders those like me who try to race through this. In order to open the safe, one must complete both wordsearch and sudoku of that given session. It's a good way to make us work for it, but I encountered an issue on one occasion. After completing the sudoku and heading to the calendar, I needed to double check the zodiac and element. Upon returning to the newspaper, the sudoku was reverted back like it was never attempted on. I ignored it, continued to opening the safe, but it didn't open when I put in the code. It worked fine after completing the sudoku again, so that's something to consider looking into.
There's nothing really more to say as this game live up to what it's attempting to replicate, a puzzle section of a newspaper that changes daily. It adds a bit a more dimension with cracking a safe open, which is something every content creator needs to keep in mind when translating one media into another; the limitations and the new possibilities.
EDIT: Not needed, huh? Well I can't deny your word, but I swear I did it without completing either of them. I mean, yesterday, I couldn't find that last word, but I had a good idea of the safe's answer, yet I couldn't get through. I did try to back track using the numerology and the circled day, but it wasn't getting me anywhere. Numerology is new to me, so I considered that I was in the fault. So today, I decided to just hardball it and use every day that falls within the respected horoscope of the appropriate zodiac year.