during (the hours of) daylight
日中に
during (the) summer
夏の間
during a football practice
フットボールの練習(時間)中に
during a special session of the Diet
臨時国会会期中に
during adolescence
青年期の間
During her visit she had two frightening experiences.
彼女は訪問中に2度怖い体験をした
during my years as a student [at (the) university]
私の在学中に
during [in] one's early teens
ローティーンのとき
during one's lifetime
一生で
during one's mayoralty
市長任期中