こんにちは。
「日帰り」は day trip と言います。
直訳すると「1日旅行」のような形ですね。
【例】
I went on a day trip to Kyoto.
「京都に日帰りで行ってきた」
The 10 Best Day Trips from Tokyo
「東京から日帰りで行ける場所10選」
ぜひ参考にしてください。
"day trip" can be used to describe the duration of a trip "it was a day trip to spain by car"
or
"I took my family for a day trip to the park"
"day trip" で、旅行の長さを表せます。
例：
"it was a day trip to spain by car"（車でスペインに日帰りの旅行に行きました）
"I took my family for a day trip to the park"（日帰りで家族をその遊園地に連れて行った）
Trip: In this context a trip is an excursion, leaving your home or usual surroundings to explore and travel out.
"A day trip."
An excursion.
Leaving your home or usual place of rest to enjoy the sights and activities away from home.
A trip that spans for a few hours and not more than twenty-four hours.
"A day trip."（日帰り旅行）
An excursion.
家を離れて名所を巡るなどの活動を行うこと。
日帰りの数時間の旅行。
A "day trip" refers to a type of a mini holiday that lasts only a day.
You would spend the day typically doing some activity, that you would normally do during the vacation time. eg: Sightseeing, travelling, doing a fun activity.
"Let's take a day trip this weekend"
"What did you do yesterday?"
"Oh, I took a little day trip to the city"
"day trip" は、1日だけのミニ休暇を指します。
この日は普通休暇の時期にする活動をして過ごします（例えば、観光や旅行、楽しい遊び）。
"Let's take a day trip this weekend"（週末に日帰りの旅行に行こう）
"What did you do yesterday?"（昨日は何をしたの）
"Oh, I took a little day trip to the city"（町の方に出掛けました）
We took a day trip to the beach in the town next to us.
Our last day trip was to visit my grandparents in the next town over.
A "day trip" is when you take a small journey to a place, that is not far away, and easy to get to and back within a day or by the night time of the same day.
イギリス 
日本 
アメリカ合衆国 
アイルランド 
南アフリカ 
