Daytime and noon with

The kanji means daytime or noon, the bright middle part of the day.

Daytime Periods

(Daytime)

昼間(ひるま) means daytime or the daylight hours.

It combines 昼 (daytime) with (interval) to show the span of the day.

Manga panel from ひよ恋 showing example of Misunderstanding an incriminating situation with 誤解.
ひよ恋 » Volume 13 » Page 73

Since Hiyori is resting on a bed inside, Junpei takes a plate from the barbecue to her room. As he walks in, he finds Hiyori and Yuushin in what looks like a compromising position.

淳平(じゅんぺい):
「…お(まえ)昼間(ひるま)っから (カギかけるよなー)」
“You guys, in the middle of the day… (At least lock the door!)”
結心(ゆうしん):
「ち ちがう 誤解(ごかい)だ!!(そい()だから!!)」
“N—No! You've got it wrong!! (We were just lying down together!)”
ひより:
()られた… ()られた…っ」
“We were seen… We were seen…!”
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(Before noon)

昼前(ひるまえ) means late morning or just before noon.

It combines 昼 (noon) with 前 (before) to show the time before midday.

Manga panel from 名探偵コナン showing example of Koto lessons with 稽古.
名探偵コナン » Volume 6 » Page 27

Hired to confirm whether a client’s wife is having an affair, Kogoro reveals a candid photo he took of the wife with another man. The client mentions he let his staff take a break so they wouldn’t know about Kogoro’s visit. Kogoro asks if that includes the client’s wife.

伝次郎(でんじろう):
「いや… 稲子(いねこ)(こと)稽古(けいこ)があるといって昼前(ひるまえ)勝手(かって)()かけたよ」
“No... Ineko said she had a koto lesson and went out on her own before noon.”
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Meals and Rest

(Nap)

昼寝(ひるね) means a daytime nap or siesta.

It combines 昼 (daytime) with 寝 (sleep) to show sleep taken during the day.

Manga panel from くノ一ツバキの胸の内 showing example of Underutilized talent with 才能.
くノ一ツバキの胸の内 » Volume 1 » Page 151

During a free day from training, Touwata and Mizubashou approach Tsubaki to request a favor. She would like Tsubaki to challenge Benisumomo to a one-on-one fight.

トウワタ:
「そのですね… ベニセンパイは才能(さいのう)があるのにそれにかまけて、ぜんっぜん努力(どりょく)しないんです。」
“Well, you see... Beni-senpai has talent, but she takes it for granted and doesn't put in any effort at all.”
「いっつも一人(ひとり)昼寝(ひるね)するってどっか()って。」
“She always go off somewhere to take a nap alone.”
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