“experience / manage” in Japanese is 経, read kei, kyou, he (けい, きょう, へ). It is a Grade 5 Kyōiku kanji, taught in year 5 of Japanese elementary school, and appears in words such as 経済 (economy).
What does 経 mean?
三年が経つ。
Same sound, different character — the classic trap. Compare them side by side: