Image:24 Hour Clock.JPG
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[edit] Summary
24 Hour clock located at Royal Observatory in Greenwich. "This was one of the earliest electrically driven public clocks and was installed here in 1852. The dial always shows Greenwich Mean Time (GMT) or Universal Time (UT). In summer Britain converts to British Summer Time(BST), which is an hour ahead of GMT, and the clock appears one hour 'late'. Being a 24 hour clock, the hour hand marks noon (XII) at the bottom of the dial and midnight (0) at the top. The time shown is accurate into 0.5 of a second.
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File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 01:23, 22 July 2007 | 3,008×2,000 (2.64 MB) | Jcfrye (Talk | contribs) | (24 Hour clock located at Royal Observatory in Greenwich. "This was one of the earliest electrically driven public clocks and was inctalled here in 1852. The dial always shows Greenwich Mean Time (GMT) or Universal Time (UT). In summer Britain converts to ) |
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Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
| Camera manufacturer | NIKON CORPORATION |
|---|---|
| Camera model | NIKON D50 |
| Exposure time | 1/200 sec (0.005) |
| F-number | f/8 |
| Date and time of data generation | 09:05, 22 June 2007 |
| Lens focal length | 38 mm |
| Orientation | Normal |
| Horizontal resolution | 300 dpi |
| Vertical resolution | 300 dpi |
| Software used | Ver.1.00 |
| File change date and time | 09:05, 22 June 2007 |
| Y and C positioning | 2 |
| Exposure Program | Not defined |
| Exif version | 2.21 |
| Date and time of digitizing | 09:05, 22 June 2007 |
| Image compression mode | 4 |
| Exposure bias | 0 |
| Maximum land aperture | 4.5 |
| Metering mode | Pattern |
| Light source | Unknown |
| Flash | 0 |
| DateTime subseconds | 20 |
| DateTimeOriginal subseconds | 20 |
| DateTimeDigitized subseconds | 20 |
| Color space | sRGB |
| Sensing method | One-chip color area sensor |
| Custom image processing | Normal process |
| Exposure mode | Auto exposure |
| White balance | Auto white balance |
| Digital zoom ratio | 1 |
| Focal length in 35 mm film | 57 |
| Scene capture type | Standard |
| Contrast | Normal |
| Saturation | Normal |
| Sharpness | Normal |
| Subject distance range | Unknown |
