We adjust our lunch time so that there will be enough people in the office during that time.
In order to have enough people in the office during the lunch hour, we take our lunch break at different times.
ご質問ありがとうございます。
① "We adjust our lunch time"＝「私たちはランチの時間を調整しています」
"so that there will be enough people in the office"＝「十分な人数が職場にいるように」
"during that time."＝「その時間帯に。」
② "In order to have enough people in the office during the lunch hour"＝「昼食の時間帯に十分な人数が職場にいるように」
"we take out lunch break at different times."＝「私たちはお互い違う時に昼休みを取っている。」
ご参考に。
アメリカ合衆国 
