![]() ![]() You'll need to enter the amount of Night time you want to log (per flight) manually - as you would do with any other type of hours (Cross Country, Multi-Engine etc). Neither of these downfalls are good for performance & usability. Compare flight times for a Citation X private jet and compare performance characteristics with other jet types. The database uses the great circle distance and the average airspeed of a commercial airliner to figure out how long a typical flight would take. FLIGHT TIME CALC ZIPYou can enter airports, cities, states, countries, or zip codes to find the flying time between any two points. To calculate the amount of time (days, hours, minutes, seconds) between times on two different dates, use the Time Duration Calculator. Travelmath provides an online flight time calculator for all types of travel routes. The result will be the new time and date based on the subtracted or added period of time. However, it is very resource-heavy and results in a much larger file size (because the file has to store every single airport latitude/longitude data). Use this calculator to add or subtract time (days, hours, minutes, seconds) from a starting time and date. Of course, it is possible to formulate an algorithm to do this, based off your on/ff blocks times to/from different airport locations around the world. Excel Pilot Logbook WILL calculate the Total Time to be 4 hours but it will not calculate the Night portion to be 2 hours. To elaborate, it will not calculate the Night PORTION of a flight between, for example, 16:00 and 20:00 when sunset is at 18:00. I hope this addressed the mathematical request of your question and let me know if I can clarify at all.Unfortunately, the Excel Pilot Logbook does not automatically calculate the Night PORTION of your flights (based on your Off Blocks / On Blocks times) - as some other apps can do. You will have to write a function that takes the departure time and determines whether it counts as night time, and then subtract any flight time that is ineligible. I understand you're problem as a developer - you will have to use a website like to grab an API that can find a local civil twlight using a city as an input. You can take your total time (ie 2.3 Hobbs) and subtract any time that would not count as night and the result is what you are legally allowed to log as night time (at least here in the US). However, that can vary quite a bit with your location on the Earth’s surface.īefore (morning) or after (evening) civil twilight and between the two is when you can log night flight. Pick from an assortment of aircraft that includes Very Light Jets, Light jets, Mid-Size Jets, Super Mid-Size Jets, Long Range Jets, Ultra Long-Range Jets, Heavy Jets, and Turbo-Prop Aircraft. Civil twilight, as a general rule, is usually the 30 minutes before sunrise or after sunset. Our flight time calculator will calculate flight time and distance depending on the aircraft you choose. The time that you can log as “night” is based on the start or end of “civil twilight.” Civil twilight is defined as the time when the geometric center of the Sun’s disk is at most 6 degrees below the horizon. ![]() Make sure to verify with your country’s aviation agency. If you have question please send me a mail to: Please remind I can not answer to your question on the rating board. This answer will address your question according to US FAA guidelines. Aviation Flight Time Calculator helps you to calculate easily your Flight Times in the 'HH: MM' - Format. ![]()
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