clock at

clock (someone or something) at (a certain speed)

To track the speed at which someone or something moves. (The speed is stated after "at.") You're getting a ticket because I clocked you at 90 miles an hour—and the speed limit here is only 55.
See also: certain, clock
Farlex Dictionary of Idioms.

clock someone or something at something

to measure the speed of someone or something to be a certain figure. I clocked the runner at a record speed for the race. Karen clocked the race at three minutes flat.
See also: clock
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • clock (someone or something) at (a certain speed)
  • speed merchant
  • speed demon
  • a turn of speed
  • turn of speed
  • speed up
  • double nickels
  • clock (someone or something) at speeds of (some amount)
  • clock at speeds of
  • full speed ahead
References in classic literature
But this clock's so much before the clock at the Chase, there's no telling what time it'll be when I get here."
Adam Bede
In other words, trainees were set the task of building a clock at the end of their apprenticeship that would prove their ability and expertise.
Skeletons keep ticking the boxes all the time; Sometimes it's good to get to the bare bones of a subject - and these fascinating and beautiful clocks are perfect proof
The Narragansett Historical Society will hold a program on the clock at 4 p.m.
Saving time; Old clock survives razing of church
Controlled by a master clock inside the building, it's part of a series of timepieces that first operated by sending electrical signals to a clock at London Bridge, which then transferred pulses to other clocks throughout England.
Top 10 clocks around the world
The range includes large metal spike wall clock at pounds 35, butterflies wall clock at pounds 25, this colour block design at pounds 25 and the lotus black wall clock at pounds 35.
what's new in autumnal timepieces
That's the time according to the concourse clock at Cardiff Central railway station, which has shown the wrong time for the past fortnight.
Cardiff Central Station - where the 11.36am train is always on time
Thanks to an exclusive home trial you can get this clock at a special introductory price.
Never set your clock again, ever! Self setting Atomic Travel Clock keeps 100% accurate time in any U.S. time zone. Now just $19
She tended the wounded from nine o'clock at night "until just before daylight." (60) Sunday, a day Bacot usually reserved for relaxation, became a day of war and work.
Battle time: Gender, modernity, and confederate hospitals
A key element within the Serializer is the Clock Multiplier Unit (CMU), which takes a reference clock at 106.25 or 53.125MHz and multiplies it by l0x or 20x to generate the bit rate clock used to serialize the data.
Fibre Channel Building Blocks: Physical Layer Elements
If you lit a candle clock at nine o'clock and it burned two bands, what time would it have been?
A Matter of Time
Pistilli said General Time is hoping to introduce the clock at the office level and then have it trickle down into use at home, much like computers, e-mail and voice mail.
CLOCK VENDORS GIVE THE PRESENT TIME
Gibbon and other scientists presented the new findings on the interval clock at a session of the American Association for the Advancement of Science's annual meeting in Baltimore this week.
Biological stopwatch found in brain
Durst remounts debt clock at 43rd and Ave of Americas
Durst remounts debt clock at 43rd and Ave of Americas
CUTLINE: The clock at the intersection of Main Street and Maple Avenue was struck by a car in July.
Car-damaged Shrewsbury town clock set to be replaced
The mid market will grow because there's room for a quality clock at a mid-range price.
Keeping clocks ticking