Clock Synchronization Is a Nightmare

https://arpitbhayani.me/blogs/clock-sync-nightmare/

#HackerNews #ClockSynchronization #Nightmare #TechBlog #Timekeeping #Challenges

Tom’s Hardware: NIST warns several of its Internet Time Service servers may be inaccurate due to a power outage — Boulder servers ‘no longer have an accurate time reference’ . “The National Institute of Standards and Technology has warned that several of its Internet Time Service servers could be providing inaccurate time following a failure of the primary atomic time scale, NIST-F4, at its […]

"NIST's NTP clock was microseconds from disaster"

#TimeKeeping #NIST #NTP #GPS #GNSS #AtomicClock

https://www.youtube.com/watch?v=ZRB7pjRVVkI

For those who celebrate, wishing you joy & light throughout the longest night. #wintersolstice blessings

Angle of rays, length of days are the reasons for the seasons
as shown in these #NASAScience solar reflectance maps

maps credit: T. Wong & CERES Science Team, NASA Langley (public domain) via Wikimedia Commons

#SeasonofLight #calendar #timekeeping #astronomy #winter #Sun #solstice #heliophysics

The December solstice — beginning of winter in the northern hemisphere & summer in the southern — was a few minutes ago, at 10:01 EST (15:01 GMT). Enjoy your winter & summer. ;)

H/t Guy Ottewell, as always. #winter #summer #seasons #solstice #astronomy #timekeeping

For those who celebrate, Io, Saturnalia!

Running from December 17 to ~23, #Saturnalia celebrated a #Roman Golden Age, when #Saturnus ( #Saturn) ruled & taught his people #argriculture and civilized behavior, by reversing the normal social order.

#SeasonofLight #calendars #timekeeping #Rome #history
photograph by Carole Raddato 2015 CC-BY-SA 2.0 via Flickr

For those who celebrate, chag urim sameach. May your Hanukkah and home be full of light.

Hanukkah begins on 25 Kislev and lasts 8 days. Over a 19-year cycle, the Jewish calendar uses variable-month years and variable-length months to achieve both solar and lunar alignment. This year, Kislev has 30 days, so Chanukah ends on 2 Tevet.

The Gregorian calendar is only aligned with solar cycles. This year, 25 Kislev began at sunset on 14 December and runs until sunset on 22 December.

#SeasonofLight #Hanukkah #Chanukah #calendars #timekeeping #astronomy

For those who celebrate, may #Advent strengthen your heart with patience and joy.

Advent is season of preparation for #Christmas.
Early Christians may have associated Jesus' conception and death with the #VernalEquinox, making the #WinterSolstice His birthday.

#SeasonofLight #calendars #timekeeping #Astronomy

Kỹ sư web chia sẻ nỗi khổ "cày giờ" với bảng chấm công mỗi cuối tuần: mất 30-50 phút "dọn dẹp" lịch sử Git để tạo bảng giờ "chuyên nghiệp" 8 tiếng. Dù mệt mỏi, anh đã tạo LogHacker (sử dụng AI tự động hóa bảng giờ từ log). Dự án đang kêu gọi 100 email đăng ký để xác minh nhu cầu thực tế. #KỹThuật #AI #ThờiGian #SángTạo #LậpTrình #devlife #aibusiness #timekeeping

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https://www.reddit.com/r/SideProject/comments/1pihoih/i_hate_time_logging_maybe_you_do_too/

Does anyone know what time it is?

Time is a human construction.

Clocks were invented so you knew when the pub opened.

https://www.youtube.com/watch?v=pc2fLhFlh4g

#TimeKeeping