The Shepherd 24-hour Gate Clock

The Shepherd 24-hour Gate Clock (HM27QS)

Location: London, England SE10 8XJ Greater London
Country: United Kingdom

N 51° 28.68', W 0° 0.083'

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The Time Ball

The Shepherd 24-hour Gate Clock
This is one of the earliest electrically driven public clocks and was installed here in 1852. The dial always shows Greenwich Mean Time (GMT). In summer Britain converts to British Summer Time (BST), which is an hour ahead of GMT, and the clock then appears one hour 'slow'.
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 to 0.5 of a second.
The Time Ball
The red time ball on top of Flamsteed House is one of the world's first visual time signals. It was installed in 1833 (though the present one dates to 1919) to enable navigators on ships in the Thames to check their marine chronometers.
The Time Ball drops daily at 1300hrs (GMT in winter, BST in summer). It is raised halfway up the mast at 1255hrs as a preparatory signal and to the top 2 minutes before it drops.
Details
HM NumberHM27QS
Tags
Marker ConditionNo reports yet
Date Added Thursday, May 24th, 2018 at 1:01pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)30U E 708221 N 5707247
Decimal Degrees51.47800000, -0.00138333
Degrees and Decimal MinutesN 51° 28.68', W 0° 0.083'
Degrees, Minutes and Seconds51° 28' 40.8" N, 0° 0' 4.98" W
Driving DirectionsGoogle Maps
Which side of the road?Marker is on the right when traveling South
Closest Postal AddressAt or near Blackheath Ave, London England SE10 8XJ, GB
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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