Maybe they shot that episode in 2016?

2017 year 1 2018 year 2 2019 year 3 2020 year 4 2021 year 5 2022 year 6 2023 year 7 2024 year 8 Get it now? Counting years

@mrjoepatti said:

2017 year 1 2018 year 2 2019 year 3 2020 year 4 2021 year 5 2022 year 6 2023 year 7 2024 year 8 Get it now? Counting years

2017 to 2018 is 1 year 2018 to 2019 is 1 year 2019 to 2020 is 1 year 2020 to 2021 is 1 year 2021 to 2022 is 1 year 2022 to 2023 is 1 year 2023 to 2024 is 1 year = 7 years total in terms of time

Isn't the season still set in 2016?

@Notamymerrick said:

Isn't the season still set in 2016?

Very possible - it was snowing at the beginning of last episode (before Barry knew about KF) and he didnt find it the least bit weird. Definitely didnt seem like spring time, that's for sure

Nope. Remember, Savitar is supposed to kill Iris in May via the future vision.

I've not seen the last episode but i think we are still a fair bit away from may 2017 in universe. When Barry was first thrown into the future it was "five months into the future" so episode 9 is November / December.

It's hard to know the timeline but: "Untouchable" "Attack on Gorilla City" and "Attack on Central City" all happen over the course of a few days.

The events of "The Wrath of Savitar" and "Into the Speedforce" also follow on from each other.

It could easily be only a few weeks in universe.

I rewatched it and he said "I'm from 2017". Not a big deal. Just thought it was worth mentioning.