Circa Solar

3.3
12 reviews
100+
Downloads
Content rating
Everyone
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About this app

Circa Solar allows you to realign with the nature of time. By visualising time as a phenomenon of daily and seasonal light-dark cycles, rather than the more recent notion of time as a purely mechanical and numerical phenomenon, Circa Solar returns to a pre-industrial relationship of time which we have aligned to through the course of evolution.

Due to the fluctuations and oscillations of the Earth's orbit and tilt on it's axis the regularity of light-dark cycles varies wildly depending on where you are and when it is. This is something that the fixed conventional mechanical watches and clocks struggle to allow for, but dynamic screen of smartwatches and smartphones are perfectly suited to such fluctuations.

Circa Solar helps us to synchronise the intrinsic relationship between our circadian rhythms, our mental and physical health, and the geophysical rhythms of light and dark. Circa Solar visualises the critical solar information contained in fluctuating daily and seasonal sunlight cycles. Such light cycles act as the primary zeitgeber (periodic external cues capable of entraining biological rhythms) that influence and govern the behaviours and physiology of nearly all living organisms.

Growing research in the fields of circadian health and chronobiology shows profound potential benefits to not only our individual mental and physical health (through improved mood, energy, sleep, resilience, and wellbeing) but also in an increased appreciation of the coexistence we share with nature as circadian organisms.
Updated on
Aug 30, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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3.3
12 reviews
A Google user
November 30, 2019
It's fun to see the relationship of dark and light but you can't see the time hand at night since it's black on black. It would be more visually appealing if the colors weren't all shades of grey but better approximated day/night sunrise/sunset colors. Maybe sprinkle some stars in night... Nice start, not sorry I backed it, hope it will blossom over the years.
4 people found this review helpful
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A Google user
December 7, 2019
Looks good but location finder has to be on all the time or the app crashes. Runs battery down. It would be better if, after determining location, it assumed location doesn't change unless updated. Developer says he has no current budget to fix this.
5 people found this review helpful
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A Google user
December 2, 2019
Great concept, glad to get my KS copy. Unfortunately on my Fossil Sport, when the face goes into "always on" mode, the screen begins a very fast flicker that is quite unsettling. Makes this face unusable to leave set on.
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