How to find what period of given timespans is currently How to find what period of given timespans is currently
I've been given 6 hour-and-minute timestamps which define a period of time, lets call them 1 trough 6. (example: 03:13, 05:22, 12:54, 16:55, 20:23, 22:14) For example: 1st period starts at 03:13 and lasts until 05:22 -1 minute, and so on Naturally, at the end, periods must cover all 24 hours in a day so the sixth period (which starts at 22:14) will last until 03:13 What is the best/most optimal way to write a function that can tell what period of time we are currently in? Here is my try (which doesn't work and is suboptimal): function currentPeriod(hrs, mins, now) { // hrs is an array of integers and they define only hours (3, 5, 12,...) // mins is an array of integers and they define minutes (13, 22, 54,...) // now is a JavaScript Date if(now.getHours() > 0 && now.getHours() < hrs[0]) { return 6; } else if(now.getHours() == hrs[0] && now.getMinutes() < mins[0]) { return 6; } else if(now.getHours() == ...