#UTC TIME TO MOUNTAIN TIME PLUS#

Highly acclaimed British architect, Christopher Wren was commissioned to design the domed building. In 1675, King Charles II offered the land to The Royal Society for Britain’s first national observatory. Greenwich was a royal park and palace on a hill to the south of the River Thames east of London, England. It wasn’t until the invention of the pendulum clock in the 1650s that it was possible to work out the relationship between mean (clock) time and solar time.īritish astronomer, John Flamsteed came up with the formula for converting solar time to mean time, and published a set of conversion tables in the early 1670s.

GMT was originally set up to aid naval navigation when travel around the globe started to open up with the exploration of the “New World” (America) during the 16th century. It’s a way to standardize time so we can all know exactly what time it is for any location.

#UTC TIME TO MOUNTAIN TIME PLUS#

If you own a sundial for instance, you’re aware that “noon” based on the position of the Sun can differ by as much as plus or minus 15 minutes from what a clock may read.īut each day measured by a clock has the same length, equal to the average (mean) length of a solar day. It differs from solar or astronomical time clock time because solar time varies throughout the year. In essence, “mean time” is what you would read off of a clock. You’ve heard of Daylight Saving Time, Standard Time, Eastern, Central, Mountain, and Pacific Time, but have you heard of the term Greenwich Mean Time, sometimes referred to simply as GMT, or Coordinated Universal Time (UTC), and wondered what the heck it is?

Utc time to mountain time