Leap Second Day

We all have heard of Leap Year Day, where we have an extra day each year. But have you ever heard of Leap Second Day?

Leap Second Day

During a leap second we leap forward one second into time! So we have one extra second in that day. There is 86,400 in a normal day.

Leap Second Day

It will either occur on June 30 or a December 31 based on a mathematical equation. December 31, 2016 was the last Leap Second. No word of any future leap seconds.

We do a Leap Second supposedly to help with time and the Earth’s rotation.

The International Earth Rotation and Reference Systems Service (IERS) is the firm that announces future leap second days, usually a few months before.

The practice of advancing one second started in 1972. To help keep time adjusted accurately to the atomic time. This practice is used with the UTC, which is where most international time is kept.

No further dates set yet, when a new date is set, I will update this blog post. I have read they plan to discontinue leaping a second in time.

Past Leap Second Days

  1. 6/30/1972
  2. 12/31/1972
  3. 12/31/1973
  4. 2/31/1974
  5. 12/31/1975
  6. 12/31/1976
  7. 12/31/1977
  8. 12/31/1978
  9. 12/31/1979
  10. 6/30/1981
  11. 6/30/1982
  12. 6/30/1983
  13. 6/30/1985
  14. 12/31/1987
  15. 12/31/1989
  16. 12/31/1990
  17. 6/30/1992
  18. 6/30/1993
  19. 6/30/1994
  20. 12/31/1995
  21. 6/30/1997
  22. 12/31/1998
  23. 12/31/2005
  24. 12/31/2008
  25. 6/30/20122
  26. 6/30/2015
  27. 12/31/2016

Time in the Bible

Now let’s look at time in the Bible. The word “time” is used 710 times in the NKJV Bible according to Bible Gateway.

The God we know, knows no time. He has always existed and always will exist. No beginning to God, nor an end to God.

In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things were made through Him, and without Him nothing was made that was made. In Him was life, and the life was the light of men. And the light shines in the darkness, and the darkness did not comprehend it. John 1:1-5

There even is a time for everything. Read Ecclesiastes 3:1-8. Check out verse 11, below. We all have eternity with God. But we must accept His Son for that eternity.

He has made everything beautiful in its time. Also He has put eternity in their hearts, except that no one can find out the work that God does from beginning to end. Ecclesiastes 3:11

Check out this verse below. It shows that God doesn’t really see time. This just can show that God is eternal.

But, beloved, do not forget this one thing, that with the Lord one day is as a thousand years, and a thousand years as one day. 2 Peter 3:8

Check out this blog post about our eternity and  End of the World?

Or even this blog post on Your Final Destination.

First published June 30, 2015. Last updated or republished January 31, 2024.

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About the Author

Author: Steve Patterson

A Christian Blogger that enjoys blogging about the Bible, Theology, God, Jesus Christ, Christian Music, Family, Cats, Odd Holidays, sewing and much more. I have been blogging since 2004, however, I have been blogging on Courageous Christian Father since 2012. I enjoy listening to Christian Music. I am married with 1 daughter, 2 step-sons and a step daughter.

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