Just to continue the math time train, since I did most of it yesterday:
Volume 6:
1 day - arrival
1 day - meeting with duke, evening party, informed duke of all cultists.
1 day - Tournament, shopping with Tolma (space magic books)
1 day - Airship, reunion with Sara, museum, scroll workshop, Arisa Skill Reset
1 day - evening meal (3 days from arrival), dance with Lady Rina
Days only got busier, Tolma Memo, went from Tea parties every other day to 3 per day plus dinner parties
6 days after evening party, 10th morning in old capital (IE, not arrival day, which means not that many Tea-Parties, or the author interjected): King arrives on Airship, Rin gets drunk right before Tournament finale
11th day in Old Capital - Yellow Greater Demon gets Pwned, Satou gets Whale meat.
12th day in Old Capital - dinner party, Menea arrives.
Total: 13 days.
Volume 7
Overnight travel to dragon.
1 day in Lumork, all gathering happened then.
1 day - returned starting in morning, got back in evening, handed holy sword to King, made more holy swords.
1 day - received medal, did Lulu fruit experimentation
1? day - untracked, but Satou mentions skipping three nights of sleep since he got back, but that math is a bit off, unless the all nighter includes the copying of books on the way back from the dragon.
1 day - Wedding Parade, Party
1 day - workshop visits, magic sword casting
1 day - Baptism in Tenion Temple
1 day - Orphanage Visit
2 days after Baptism - Princess Menea shows up with the 2 Japanese kids.
so 8-9 days in Volume 7.
So all in all, we're looking at 59 +13 +13 +8 + A FEW. = over 93 days, so it's been 3 months and some change, not two months. the Mangaka is forgiven because the LN also used '2 months ago', but the author is guilty of not checking his own math, lol.