Part 2: How to Stream Roku Supported Videos and Audio. If you have the video formats that Roku supports, congrats. But wait a minute, you can only cast them from phones to your TV via Roku, as long as you have an Apple device with iOS 4.3 or later, or one of the following Android phones or tablets: Samsung Galaxy S III.
A day, symbol d, is defined as 86 400 seconds. The Second is the base unit of time in SI units. A day according to Coordinated Universal Time (UCT) can include a negative or positive leap second, and can therefore have a length of either 86 399 or 86 401 seconds.
When you have cancelled out the units you don't want and are left only with the units you do want, then you know it's time to multiply all the top numbers together, and divide by all the bottom numbers. In this case you just need to multiple 60x60x24 to get the answer: There are 86,400 seconds in a day.