Terms of Use, TheDarkestDay
What this site is
TheDarkestDay calculates sunrise, sunset, twilight and day length for US places from published solar equations. It is for information only.
How accurate the times are
Calculated times are typically within a minute or two of the true event for a flat horizon at the place's listed coordinates. Hills, buildings, elevation and unusual air can move what you actually see by several minutes. Do not rely on these times for navigation, aviation, legal hunting hours or anything else where a minute matters; use the official source for that purpose.
No medical advice
Nothing on this site is medical advice. Where a page discusses light therapy lamps or sunrise alarm clocks, it is talking about daylight hours only. If winter low mood is the reason you are here, talk to a doctor before relying on any device.
Content and links
Site content is the property of TheDarkestDay unless noted otherwise. External links are provided for convenience; TheDarkestDay is not responsible for third-party sites.
Changes
These terms may be updated as the site changes. Continued use after an update means you accept the current version.