Its fine for now. She's only 1 years old.
Eventually, when she is formally in school, you will have to adjust her bedtime and wake times, and per after school timing/homework/week day after school socializing.
To me... going to visit Grandma, in the evening, is late to be visiting. Then that makes you/your child, latER... to then come home and wind-down and get her ready for bed. Once you do come home, after visiting Grandma.
And, IF Grandma comes over too, I assume in the evenings, that makes timing late for you/your child too.
So to me... GRANDMA... is the one making your child/you/the family 'late' in the whole scheme of things.
To me, after work/when you get and your child get home.. then that is YOUR time and lots to do once you get home. Plus you have to get dinner made and eat and bathe her... which all takes lots of time.
So... Grandma visiting and you visiting her in the evening.. to me, is what is making everything... LATER.