My job/work has no year end holiday, no golden week and no summer holidays.
"私の仕事は年末年始もGWも夏も休みがありません"
My job/work has no New year holiday, no Golden Week and no summer holidays.
"土日、祝日も休みがありません"
There are also no weekends nor national holidays.
"私が長期休暇が取れるのは毎月15日~28日位までです"
I can take a long vacation from the 15th to the 28th of every month.
"私は一人で仕事を受け持っていて、代われる人はいません。毎月1~14日まではとても忙しいです"
I'm in charge of work alone and there is no one to replace me. From the 1st to the 14th of every month I'm very busy.