Light Travel Time Calculator
Send a text from your phone to another person on Earth: instant. Send that text to a person in orbit aboard International Space Station: virtually … Read More
JSCalc
Light Year to Kilometer Converter
But wait! A light-year isn’t a measurement of time. It’s a unit of distance. Specificly, it’s the distance traveled by light in one Julian year. … Read More
Last Day of the Month Calculator
At the end of month, accountants and operations managers starts panicking as they approach the close-the-books deadline. Business doesn’t necessarily follow calendar. Holidays and weekends … Read More
Nth Weekday of the Month Calculator
If you have an event that recurs every month (“Monthly Team Sync”) then your calendar probably has a big ol’ gray box in there and … Read More
Recurring Event Date Calculator
Take your monthly team meeting on the 30th, for instance. Everything makes sense until one day, February comes around with just 28 days. Now what? … Read More
ETA Calculator
When estimating how long it’ll take, factor in slow traffic and red lights. A lot of people just divides miles by mph. That doesn’t account … Read More
Pace From Time and Distance Calculator
You go out and do a run. Your watch tell you how long it took, but maybe you don’t really know what that number will … Read More
Epoch Time Difference Calculator
When you look at it, it probably seems like gibberish. A long string of numbers representing, what? But its not gibberish at all; it’s a … Read More
Unix Timestamp Converter
Your log file reports that a user logged in at 1700000000. To your eyes, it’s just a bunch of random numbers, yet it’s obviously some … Read More
Julian Date Converter
There is confusion about Julian dates because in each field the term refer to something different. To a warehouse, it’s a serial number used to … Read More