日
il
One rise and set of the sun — that is a day
The picture One block of time from the sun coming up to the sun going down: light once, then dark. 日 is one rise and set of the sun; 月 is one waxing and waning of the moon.
Where the picture shows up in 日
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the day named for the sun
일요일은 가게가 쉬어요.
i-ryo-i-reun ga-ge-ga swi-eo-yo
The shop is closed on Sundays.
A finger on the box written in red on a calendar, a closed sign taped to a shop door
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the day you first saw the sun
내일이 어머니 생일이에요.
nae-i-ri eo-meo-ni saeng-i-ri-e-yo
Tomorrow is my mother's birthday.
One person smiling in front of a cake with candles standing in it
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not one day skipped
매일 아침 약을 드세요.
mae-il a-chim ya-geul deu-se-yo
Take the medicine every morning.
One pill landing in a palm again each time the sun comes up
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the boxes filling one day
오늘은 일정이 많아요.
o-neu-reun il-jeong-i ma-na-yo
I have a lot on today.
A pocket diary with writing packed into every hour from morning to night
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a day left empty
이번 주는 휴일이 없어요.
i-beon ju-neun hyu-i-ri eop-seo-yo
There's no day off this week.
A calendar where all seven boxes are full of writing and not one is blank
All of it in one picture
日 is one block from sunrise to sunset. The block in the week named for the sun is Sunday; the block on which you first saw that sun is your birthday. Repeat the block without skipping any and you get "every day"; fill the inside of one block hour by hour and you get a schedule. A block deliberately left empty of work is a holiday.