For those who observe, remember that the new commandment given this night is to love one another.
The #LastSupper ( #MaundyThursday ) is associated with a #Passover #seder observed by Jesus.
Hence, the "1st #fullmoon after the #vernalequinox " part of dating #Easter (Feast of the Resurrection), which occurs on the following Sunday.
Last Supper painting by Jacopo Bassano c. 1546 courtesy of Galleria Borghese 144
#calendar #timekeeping #astronomy
ATOMIC CLOCKS REACH NEW PRECISION, PROBING THE FABRIC OF REALITY
Scientists use new Ytterbium atomic clocks to measure time with extreme accuracy. This could help find new physics and particles.
#AtomicClocks, #Ytterbium, #Physics, #Timekeeping, #NIST
https://newsletter.tf/ytterbium-atomic-clocks-measure-time-more-accurately/
These new Ytterbium atomic clocks are much more accurate than older clocks, helping scientists test the laws of the universe.
#AtomicClocks, #Ytterbium, #Physics, #Timekeeping, #NIST
https://newsletter.tf/ytterbium-atomic-clocks-measure-time-more-accurately/
To those who celebrate, chag pesach kasher v’sameach.
Full moon April 2 2026 02:12 UTC
Full moon Nissan 15 5786 05:12 IDT
The Jewish #calendar is lunisolar, aligning phases of the moon with annual seasons. The #fullmoon falls in the middle of the #month.
As a #spring festival, the #Passover full #moon occurs shortly after the #vernalequinox
Pages from The Birds' Head Haggadah c.1300 Israel Museum #199815 via Wikimedia Commons
#passover #timekeeping #astronomy #haggadah #illustration
For those who celebrate, may you experience peace and happiness on this special day. Eid Mubarak!
The Shawwal #moon was seen, which ends the #Ramadan 1447 AH fast for Muslim communities.
Determining Eid al-Fitr in the USA uses both #moonwatch ing and #astronomy calculations.
The Blue Mosque is a historic #mosque in Tabriz, Iran. The mosque was constructed in 1465 upon the order of Jahan Shah, the ruler of Kara Koyunlu. photograph Hameddaeipic 2020 via Wikimedia Commons (CC-BY-SA 4.0)
For those who celebrate, shake off your #winter hibernation & sing w/ #nature this #spring. #Ostara blessings! Happy #vernalequinox!
On the #equinox, the #Sun rises due #east and sets due #west. The length of daylight and darkness is nearly balanced, but #refraction gives us a little more light.
photograph courtesy Gosia K 2020 via Pixabay
#calendar #timekeeping #astronomy #season
March 20 2026 14:46 UT1
#Sun crosses #celestialequator heading northward,
#vernalequinox in #northernhemisphere
Our #daylight periods will continue to lengthen until #summersolstice; in the
#southernhemissphere, the #seasons are reversed.
composite photograph courtesy Tunç Tezel/IAU OAE (CC BY 4.0)
#astronomy #astrophotography #calendar #equinox #timekeeping #solstice
Fun fact: The best way to enable ptp_kvm on #coreos is ensuring the kernel arg ignition.platform.id=qemu is set. Then coreos-platform-chrony-config.service will load ptp_kvm and configure chrony accordingly.
rpm-ostree kargs --replace=ignition.platform.id=qemu
I was wondering why another VM at Ionos had ptp_kvm working without me setting it up. It turned out my Hetzner VM had ignition.platform.id=metal which prevents automatic ptp_kvm setup.
Today I learned: Hetzner supports ptp_kvm for time sync, no ntp servers necessary (although I still have them in my config).
Jennifer Lynn Bartlett
NewsletterTF
folkert van heusden
Markus Lindenberg