Mark Time
Free
1.2for iPhone, iPad and more
Age Rating
Mark Time Screenshots
About Mark Time
Mark Time is an application for Celestial Navigation that solves the problem of how to take an accurate time reading to go with each sextant sighting.
By simply tapping the screen you can record the exact time UTC as you take your sight, so you have no chance of making an error with the conversion, and this time is stored in one of five registers.
Very useful when you have an assistant, and ideal for taking readings when you are on your own.
As you record a time you hear a confirmation sound and feel a vibration, so there is no need even to look at the screen. In addition the actual latitude and longitude at each time can be accessed later to verify your calculations. These options are all configurable in Settings to suit your own preferences.
You can optionally take a photo of your sextant at the marked time so that you can read your sextant or confirm your reading later. Pinch and zoom to get a really close look at the scale.
By simply tapping the screen you can record the exact time UTC as you take your sight, so you have no chance of making an error with the conversion, and this time is stored in one of five registers.
Very useful when you have an assistant, and ideal for taking readings when you are on your own.
As you record a time you hear a confirmation sound and feel a vibration, so there is no need even to look at the screen. In addition the actual latitude and longitude at each time can be accessed later to verify your calculations. These options are all configurable in Settings to suit your own preferences.
You can optionally take a photo of your sextant at the marked time so that you can read your sextant or confirm your reading later. Pinch and zoom to get a really close look at the scale.
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What's New in the Latest Version 1.2
Last updated on Jul 31, 2023
Old Versions
Tap the Lock button to block any inadvertent readings. Hold the Unlock button to re-activate the screen.
The last ten readings are stored, with the most recent five being visible. Delete recent readings to retrieve older ones.
The last ten readings are stored, with the most recent five being visible. Delete recent readings to retrieve older ones.
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Version History
1.2
Jul 31, 2023
Tap the Lock button to block any inadvertent readings. Hold the Unlock button to re-activate the screen.
The last ten readings are stored, with the most recent five being visible. Delete recent readings to retrieve older ones.
The last ten readings are stored, with the most recent five being visible. Delete recent readings to retrieve older ones.
1.1
Feb 4, 2019
Take a photo of your sextant at the marked time, so you can check easily double-check your reading.
Pinch and zoom on the photo to get a really close look at the scale.
Delete one of the 5 stored readings if you have tapped by mistake.
Pinch and zoom on the photo to get a really close look at the scale.
Delete one of the 5 stored readings if you have tapped by mistake.
1.0
Dec 11, 2017
Mark Time FAQ
Click here to learn how to download Mark Time in restricted country or region.
Check the following list to see the minimum requirements of Mark Time.
iPhone
Requires iOS 15.0 or later.
iPad
Requires iPadOS 15.0 or later.
iPod touch
Requires iOS 15.0 or later.
Mark Time supports English
