EFTS registration is a two-step process with application and approval by moderators.

• Applications start Monday, February 23 at 9:00 CET (Paris time)
• Decision on applications is expected by Monday, March 16

Please save the date now, inform coworkers, colleagues, and friends, and read carefully the Registration page.

The 14th European Frequency and Time Seminar will be in Besancon, France, June 29 to July 3, 2026.
The EFTS is a crash course where you attend lectures and do experiments every day at the lab sessions.

There is a capped number of places, and every year we have more requests than we can accept.

Further details are given below.

European Frequency and Time Seminar

Besancon, France, June 29 to July 3, 2026

The EFTS is an intensive full-week seminar intended to provide education and training with lectures and laboratory sessions. It targets a broad audience: Engineers, Ph.D. Students, Post-doctoral Fellows, Young Scientists, Newcomers, etc.

This seminar is original in the following:

• Broad spectrum of topics related to time and frequency
• Broad target audience, yet keeping high level education
• Balance between academic and applied issues
• True laboratory sessions (as opposite to demos). The attendees are expected to practice on a wide range of instruments made available.

We plan 23 lectures, 7.5 h hands-on labs in small groups, visits at the FEMTO-ST Institute and the Observatory of Besancon, social events, and an Astronomy Session on the “exact time” from stars.

Please look at the preliminary Program.