Zulu time what does it mean

Lots more Navigation Resources. In a recent editorial, we talked about the ethereal concept of Fiji time. You can tell it's mid-winter and we're starting to get a little stir crazy. Maybe this will help or maybe it will put you to sleep. Here goes Zulu time is, simply put, that which you know as GMT.

When it is noon at the observatory is it five hours earlier in Washington DC under standard time. Unfortunately, the Earth does not rotate at an exactly constant rate and so a new timescale was developed for greater accuracy.

Time zones in the United States include:. Why do you need to know this? Because lots of things happen in Zulu time, one of which is the weather. More accurately the weather prediction reports from NOAA based on satellite imagery which is referenced to zulu time. You have to know what time it is relative to Zulu time to know when a storm might come your way. That's why they have a calculator for converting Zulu time to local time. What's even more fascinating okay, at least to me is the concept of leap seconds.

Leap seconds can be introduced in UTC at the end of the months of December or June, depending on the need. A bulletin is mailed every six months, either to announce a time step in UTC or to confirm that there will be no time step at the next possible date. A positive leap second will be introduced at the end of December Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance.

Develop and improve products. List of Partners vendors. Share Flipboard Email. Tiffany Means. Meteorology Expert. Updated January 18, Featured Video. Cite this Article Format. Means, Tiffany. Greenwich Mean Time vs. Coordinated Universal Time.

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