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Universal Time Offset and Conversion
Current Universal Time (UT): (Hit the 'Reload' button on your browser to Update)
According to our server ....
The Current Universal Time is:
12:09 |
 Tip! You may want to get a digital clock or watch that displays
time in 24 hour format; and keep it set to Universal Time.
Determine the UT OFFSET for your time zone:
| | | Ex.: Morning | Ex.: Afternoon |
| 1. Write down current UT: | ___h ___m | 14h 24m | 18h 05m |
| 2. Write down current local time: | ___h ___m | 9h 24m | 1h 05m |
| 3. Convert to 24 hour clock: | ___h ___m | 9h 24m | 13h 05m |
| 4. Subtract (3) from (1): | ___h ___m | 5h | 5h |
The final number (5 hours in both examples for Eastern Standard Time in the
United States) is the UT OFFSET for your time zone. This means that it is 5
hours earlier in this time zone than it is at the Prime Meridian running
through Greenwich, England.
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Sometimes you may find that it is a different day (generally a day later) at
Greenwich when you access this page. In that case
this site may be useful in
figuring out your UT offset. You can look up any place on the globe and it
gives the current time and date, plus a statement like "Standard Time -0500 UTC".
This is for Virginia and means we are 5 hours behind UTC.
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The UT OFFSET changes when daylight saving time begins or ends, because
UT does not change. When daylight saving time is in effect in the Eastern
US Time Zone (Eastern Daylight Time), the UT offset is reduced to 4 hours.
Convert Observation Time to Universal Time
| | | Ex.: Morning | Ex.: Afternoon |
| 1. Record local time of observation: | ___h ___m | 10h 28m | 2h 16m | |
| 2. Convert to 24 hour clock: | ___h ___m | 10h 28m | 14h 16m | |
| 3. Write down UT OFFSET: | ___h ___m | 5h | 5h | |
| 4. Add (2) and (3): | ___h ___m | 15h 28m | 19h 16m | |
The answer in (4) is the Universal Time of your observation. Record this time
on your observation report.
S'COOL
What to Observe
Report Form
Glossary
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