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.
Here's how I came up with that figure: To count to 1 billion would take 999,999,999 seconds, because the timer would start as soon as the person says one, one second would have passed when the person says two, and so on. [Thanks to Jacques de Wet for this observation.] Now, there are 31557600 seconds in one year (seconds*minutes*hours*days).