Particle physicist Professor Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is that we're asking? Brian visits the ancient Mayan pyramids in Mexico where the Maya built temples to time. He finds out that a day is never 24 hours and meets Earth's very own Director of Time. He journeys to the beginning of time, and goes beyond within the realms of string theory, and explores the very limit of time. He discovers that we not only travel through time at the speed of light, but the experience we feel as the passing of time could be an illusion.
| Title | Horizon - Season 45 Episode 15 : Do You Know What Time It Is? |
|---|---|
| Alternative Titles | BBC Horizon |
| Subtitle Available |
 ETC.
|
| First Air Date | 1964-02-04 |
| Last Air Date | 2024-07-22 |
| Number of Episodes | 1169 |
| Number of Seasons | 60 |
| Genres | Documentary, |
| Networks | BBC Two, |
| Casts | |
| Plot Keywords | , |
Episodes List
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Horizon Season 45 :Episode 1 How to Kill a Human Being How to Kill a Human Being
2008-01-15Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 2 Total Isolation Total Isolation
2008-01-22Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 3 What on Earth is Wrong With Gravity? What on Earth is Wrong With Gravity?
2008-01-29Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 4 Is Alcohol Worse than Ecstasy? Is Alcohol Worse than Ecstasy?
2008-02-05Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 5 How to Make Better Decisions How to Make Better Decisions
2008-02-12Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 6 How to Live to be 101 How to Live to be 101
2008-02-19Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 7 Prof. Regan's Supermarket Secrets Prof. Regan's Supermarket Secrets
2008-02-26Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 8 Are we Alone in the Universe? Are we Alone in the Universe?
2008-03-04Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 9 How Much is Your Dead Body Worth? How Much is Your Dead Body Worth?
2008-03-18Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 10 How Does Your Memory Work? How Does Your Memory Work?
2008-03-25Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 11 The President's Guide to Science The President's Guide to Science
2008-09-16Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 12 How Mad Are You? (1 of 2) How Mad Are You? (1 of 2)
2008-11-11Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 13 How Mad Are You? (2 of 2) How Mad Are You? (2 of 2)
2008-11-18Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 14 Jimmy's GM Food Fight Jimmy's GM Food Fight
2008-11-25Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 15 Do You Know What Time It Is? Do You Know What Time It Is?
2008-12-02Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 16 Allergy Planet Allergy Planet
2008-12-09Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 45 :Episode 17 Where's My Robot? Where's My Robot?
2008-12-16Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
