Daylight Saving Time Calculator
About Daylight Saving Time Calculator tool.
The concept of the Daylight saving time (DST) has been known to some extent from the ancient roman times, but only after the industrial revolution has it been formalized. The modern concept was formulated by a New Zealand national - George Vernon. The concept behind it is that since days are longer during the summer and shorter during the winter, advancing clocks accordingly would give people more sunlight and will effectively increase their productivity and the amount of time they have.