Emerald Time

I have been using Emerald Time for a couple of years, mainly to precisely set my wristwatch and all of the clocks in my house, to the second. It is extremely accurate. The display on my I-phone is easy to see, and keeps on running accurately as I go around the house setting all of the clocks and appliance time displays. I used to use the WWV atomic clock shortwave radio but Emerald Time is admittedly easier to use, and just as accurate. Thank you for creating this App. BTW, Emerald Geneva is also frequent go-to for lunar and astronomical event tracking.

My house is populated with both weight driven pendulum and spring wound striking clocks of different kinds. Weekly winding day also requires having an accurate time standard to check variations in timekeeping and make small adjustments. I have a tall standing clock ("grandfather") that I usually have adjusted to accuracy of 2-6 seconds a week. Some times of year when temperatures shift means pendulum lengths have to be adjusted. This app really works great! Also, I have companion parrots and being able to control the audible sounds available (or shut them off) means I don’t have my feathered kids learning more beeps and boops.

Fantastic simple, and highly useful. This gives you the extreme precision time of NTP, with lots of useful options. Specify servers, audible ticks/beeps, different display options, status of NTP time sync quality, etc. I often use it as a time sync reference on data logging videos- just point the camera at Emerald Time on my iPhone screen at the beginning of a video. Love this!!