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A day, a unit of time, is approximately the period of time during which the Earth completes one rotation with respect to the Sun (solar day). In 1960, the second was redefined in terms of the orbital motion of the Earth in year 1900, and was designated the SI base unit of time. The unit of measurement "day", was redefined as 86 400 SI seconds and symbolized d. In 1967, the second and so the day were redefined by atomic electron transition. A civil day is usually 86 400 seconds, plus or minus a possible leap second in Coordinated Universal Time (UTC), and occasionally plus or minus an hour in those locations that change from or to daylight saving time. In common usage, it is either an interval equal to 24 hours or daytime, the consecutive period of time during which the Sun is above the horizon. The word day may also refer to a day of the week or to a calendar date, as in answer to the question, "On which day?" The life patterns (circadian rhythms) of humans and many other species are related to Earth's solar day and the day-night cycle.
babies - End of school year
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babies

Added 3 weeks ago by kas

21

Mójsynuś - My sons who are by the sea and have fun
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Mójsynuś

Added 4 weeks ago by Dorota

82 2

Majoox10 - The beginning of the year of my crumb
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Majoox10

Added month ago by majaxd

6

Genelia Ritesh - Genelia and Ritesh at the photo session.
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Genelia Ritesh

Added 2 months ago by Mini

3

House-monument - cottage in the Polish countryside
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House-monument

Added 2 months ago by krystyna

47

A card for my mother - Mother's Day card. Special day.
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A card for my mother

Added 4 months ago by SYlwia

80 2

Child and balloons - All our children are! Special day.
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Child and balloons

Added 4 months ago by kot

27

Children's Day - Much joy for all Children! Special day. The best puzzle zone for kids.
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Children's Day

Added 4 months ago by Basia

28 1

Christian - My child eats an ice cream on a normal day with his mom
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Christian

Added year ago by Rita

22

best brother - A little boy lying in a small boat
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best brother

Added year ago by julia

26

sisters - kupowiki is kupowiki
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sisters

Added year ago by ewa

20

my Valentine - we celebrate Valentine's Day >>> Special day.
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my Valentine

Added year ago by Basiunia

57 1

super heart 12 - it's cool and nice. Special day.
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super heart 12

Added year ago by Gosia

121

Spring - Yellow daffodils in the spring
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Spring

Added year ago by gabriel

72

Valentine's Day - colorful jigsaw puzzle. Special day.
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Valentine's Day

Added year ago by andi

70

Doris Day - Doris DayDoris DayDoris Day
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Doris Day

Added year ago by Doris Day

14

zuziawnusia - wnusiazuziawnusiaukladanka
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zuziawnusia

Added year ago by Frugo

63 1

Jigsaw puzzle - complicated puzzle
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Jigsaw puzzle

Added year ago by andi

13

Friends <3 - My picture with my best friend.
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Friends <3

Added year ago by Julia

18

Max and Ruby - Maks is a bunny and lives in a rabbit town. He loves to mess and mischief. His older sister Ruby is
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Max and Ruby

Added year ago by max

77

Days of the week - Colorful picture of the week
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Days of the week

Added year ago by week

10 1

kajetanek5 - Mary's spells on the cushions' puzzles
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kajetanek5

Added year ago by maju

13

kajetanek3 - my son's dad's backs
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kajetanek3

Added year ago by maju

11

kajetanek2 - my tiny only son
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kajetanek2

Added year ago by maju

93

kajetanek1 - my little beloved treasure
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kajetanek1

Added year ago by maju

26

kajetanek - my little dear son
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kajetanek

Added year ago by maju

10