Yeah, but what is the alternative? Lots of insterstitial cards that say the dates (six days later...)? Giant masses of men and ships being gone for 10 episodes at a time? Characters walking around doing exposition dumps?
"Oh, the queen isn't here, Theon. She left exactly four days ago, which is the amount of time it takes to sail to the mainland and ride 200 miles while sending riders and dragons ahead to make sure no word reaches the Lannister armies in the field. Sorry, Bro."
"Damn it, if only somebody would have told me that 4 weeks ago when I convinced these men to bring me here, which was six days after the staggering onslaught that Euron Greyjoy sprung upon our ships before he sailed to King's landing with his hostages, then left immediately to intercept the Targaryen navy."
"Ah, I wouldn't know, I've been mining dragon glass for the last 8 days and 4 hours..."