Emerald Time

Emerald Time uses Network Time Protocol to display the current time of day as defined by the international standard atomic clocks. Its accuracy is limited only by network latency and is usually accurate to less than +/-100 milliseconds.

Category	Price	Seller	Device
Utilities	Free	Emerald Sequoia LLC	iPhone, iPad, iPod

Features:
- geeky stats
- blinky lights and numbers
- display options for 12- or 24-hour, UTC or local, seconds & tenths
- NTP accuracy
- leap second display
- optional tick sounds
- optional screen brightness control
- night mode

(Requires Internet access. Emerald Time does not change the internal clock used by all other iPhone apps.)

Reviews

Is this synced to atomic time?
A book reviewer

Is this app synced to atomic time? Because if it is it would be perfect! Other than that, it is a great app!

So Handy! Genius.
Julio the Grey

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.

Awesome app!!
thepalsrus

Just what I needed thanks!!

One tweak needed
KMDO

This app needs support for landscape orientation esp when phone is plugged in since apple puts The charge port on bottom so cord is in the way when using phone while plugged in.

So Usefull
gm2365

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.

I use it for my clocks and it’s free
Cinnamon Panda

It gets its time from internet atomic clocks and you use it to set your clocks, up to the millisecond, and it’s free. It’s great, 10/10. What are you still doing here? Download and use it!

Outstanding App!
Mark Chmura

Very accurate and easy to use. Highly recommend this app!

AMAZING
RichE54

As an engineer, astronomy hobbyist, and watch collector this is simply amazing. The explanations are well written, the "modern" display a wonderful match for use with the atomic clock, and the ability to see source data unmatched in any other application found. I may need to buy an iPad simply for the Emerald mechanical watch application. Thanks so much for the effort to create. Finally I have always wondered about how WWV time could be used in an application. This application is worth much more than "FREE". It is worth $2.99.

Absolutely Beautiful
FFighter91

Incredible. Brilliant. Remarkable. 1,000 adjectives come to mind when I think about this app. It's awesome, since I never have to worry about setting a clock to the wrong time. And it's free, how can you beat that?

Accuracy to a T
FA1SGL

I became an accurate time fanatic while serving as a Nuclear Weapons instructor. Absolute precision in time and location is a must. I've retained my need for accuracy with my timepiece and now my iPad. I also have location precision handled with various Geo-location applications. Accuracy, accuracy, accuracy...