time loop n.
a (short) repeating period of time, typically one which (some) people are aware they are experiencing repeatedly
SF Encyclopedia
Wikipedia
Time Travel
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1936 The Time Entity in Astounding Stories Oct. 76/2
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Otto Binder
Eando Binder
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Memory is another abstract quality hard to define, unless one thinks of reliving every instant over and over as often as the time loop curls back on itself. Why do we remember some things in our childhood vividly, and forget other events completely a week after hamppening? Simply—yet not so simply—because the successive loops of time are overlapping in places, far apart in others.
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1946 Forever Is Today in Thrilling Wonder Stories Summer 96/1
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Charles F. Ksanda
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The silver sphere before you is a perfect pendulum, its motion exactly adjusted by magnetic currents in the metal rail beneath it. The length of the time loop varies directly with the rate at which the sphere passes through the basin.
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1960 This Year & No Other in Science Fiction Stories May 63/2
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Donald A. Wollheim
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Arthur Rainier determined that a time loop was due to open within striking distance of this city last year.
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1972 Stainless Steel Rat’s Return in Worlds of If Apr. 103/1
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Harry Harrison
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‘When was he born? Where does he come from?’ ‘Those terms are meaningless in this sort of temporal relationship. He exists only within this time loop.’
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1978 Fragger’s Bottom Line…Line…Line… in Asimov’s Science Fiction July–Aug. 140
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Sherwood Springer
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Was there something tricky about this time jumping that neither he nor Murdo knew about? Overlapping, maybe, or a time loop or something…that could bring him around in a circle. [ellipsis in orig.]
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1991 Cinefantastique Feb. 53/5 (caption)
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Kirtwood Smith, trapped in an unending time loop in 12:01 P.M.
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2006 The Teller of Time in Analog Science Fiction & Fact July–Aug. 139/1
Carl Frederick
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If he didn’t get back, he’d be in an endless time loop: reliving his life to the point of doing the experiment, then going back and living it again—and again and again.
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2016 Still More Primary Phenomena in 25 Years of Tomorrow II. (2017) 530
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As it turns out, we are trapped in a time loop—doomed to repeat this election cycle for all eternity!
Research requirements
antedating 1936
Earliest cite
Otto Binder, in Astounding
Last modified 2026-02-03 04:51:16
In the compilation of some
entries, HDSF has drawn extensively on corresponding entries
in OED.