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Emerald Time

By Emerald Sequoia LLC

This app is only available on the App Store for iOS devices.


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.

- 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.)

What's New in Version 1.9.2

- Tweak packet parameters sent to ntp servers
- Misc bugfixes


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iPad Screenshot 1
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Customer Reviews

This has been my precision time reference for years

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!!

absolutely superb app

I rarely write reviews but in the case of this particular app I am compelled to — this recently discovered app is absolutely superb — it stands head & shoulders above other time display apps (and I have looked at many) — it meets its intended function dead on — it’s evident the developer is precise & detailed — it’s one of the rare apps that gives me an immense sense of pleasure to use

Simple works great

Keep up with the updates, thanks!

Emerald Time
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Utilities
  • Updated:
  • Version: 1.9.2
  • Size: 1.4 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
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