Tax Year 2015 Calendar: Important Dates and Deadlines. Unless otherwise indicated, all deadlines are at 11:59:59 P.M. (one second before midnight) local time. See also IRS Publication 509. November 15, 2015. Open enrollment for tax year 2016 begins at the Health Insurance Marketplace.
What is the Difference Between Led and Lead? The main difference between led and lead is tense. Led is the past tense of lead. She leads the way to prosperity. She led the way to prosperity. One of these examples is happening now (present tense) and the other has already happened (past tense). The problem, however, is that the past tense led is pronounced exactly like lead (a soft, toxic metal).
The light-emitting semiconductor material determines the LED's color, so the number of colors is infinite. As indicated by its full name â Light Emitting Diode â an LED is a diode that emits light. A diode is a device that allows current to flow in only one direction. Almost any two conductive materials will form a diode when placed in contact with each other â with a single p-n semiconductor junction between them.