Sunrise Sunset Times

  • Enter a city and country in the "Enter Location" field to get sunrise and sunset times.
  • Click "Get Times" to calculate and display the times for the next 7 days.
  • Hover over the table rows to highlight them for better readability.
  • Click "Clear" to reset the input field and results.
  • Click "Copy to Clipboard" to copy the results to the clipboard.
Enter a city and country to get sunrise and sunset times.


The Sunrise Sunset Times tool is a web-based utility designed to provide users with accurate information about the sunrise and sunset times for a specific location and date. This tool offers a user-friendly interface, enabling individuals to easily access essential data related to daylight hours.

Concepts Behind Sunrise and Sunset Times

Earth’s Rotation and Its Impact

The primary factor influencing sunrise and sunset times is the Earth’s rotation on its axis. As the Earth rotates, different locations experience varying amounts of daylight and darkness. This phenomenon is crucial in understanding the patterns of sunrise and sunset times globally. The axis tilt of the Earth further contributes to seasonal variations in day length.

Solar Declination

Solar declination is a key concept in determining the position of the Sun in the sky at a given location and time. It represents the angle between the rays of the Sun and the plane of the Earth’s equator. The variation in solar declination throughout the year is responsible for the changing lengths of days and nights.

Equation of Time

The Equation of Time accounts for irregularities in the Earth’s orbit and axial tilt, resulting in slight deviations in the expected solar time. This correction factor ensures greater accuracy when predicting the exact moments of sunrise and sunset.

Formulae for Calculating Sunrise and Sunset Times

Solar Hour Angle

The Solar Hour Angle (SHA) is a critical parameter in calculating sunrise and sunset times. It represents the angle between the observer’s meridian and the meridian containing the Sun. The formula for SHA is given by:


where (ϕ) is the observer’s latitude and (δ ) is the solar declination.

Sunrise and Sunset Times

Using the Solar Hour Angle, the sunrise and sunset times can be determined as follows:


These formulae consider the observer’s location and the solar declination, providing accurate timings for sunrise and sunset.

Benefits of the Sunrise Sunset Times Tool

Astronomical and Navigational Applications

The tool serves astronomers and navigators by offering precise information about celestial events. Astronomers use it to plan observations, while navigators rely on it for accurate timekeeping during sea and air travel.

Outdoor Activities Planning

For outdoor enthusiasts, knowing sunrise and sunset times is crucial for planning activities such as hiking, camping, and photography. The tool aids in optimizing daylight hours for these pursuits.

Agriculture and Farming

In agriculture, understanding daylight duration is vital for crop management. Farmers use sunrise and sunset data to schedule planting, harvesting, and other agricultural activities.

Urban Planning

City planners utilize sunrise and sunset times in designing urban spaces, considering factors like natural light exposure for buildings and public spaces.

Interesting Facts about Sunrise and Sunset

Variation with Latitude

Sunrise and sunset times vary significantly with latitude. Near the poles, especially during certain seasons, the Sun may not set or rise for an extended period, leading to phenomena like the Midnight Sun.

Equator and Equal Day and Night

At the equator, day and night durations remain nearly equal throughout the year due to minimal variation in solar declination.

Atmospheric Effects

The Earth’s atmosphere influences the perceived shape and color of the Sun during sunrise and sunset, leading to phenomena like the green flash and vivid hues in the sky.


  1. Meeus, J. (1991). “Astronomical Algorithms.” Willmann-Bell, Inc.
  2. Duffett-Smith, P. (1992). “Practical Astronomy with Your Calculator.” Cambridge University Press.
  3. NOAA Solar Calculator. The National Oceanic and Atmospheric Administration (NOAA)


The Sunrise Sunset Times tool is a valuable resource with broad applications, from astronomy and navigation to agriculture and urban planning. By delving into the underlying concepts, formulae, and benefits, users can gain a deeper appreciation for the significance of sunrise and sunset times. The tool’s accuracy and accessibility contribute to its widespread use across diverse fields, making it an indispensable asset for individuals and professionals alike.

Last Updated : 27 February, 2024

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21 thoughts on “Sunrise Sunset Times”

  1. This article provides a comprehensive overview of the factors influencing sunrise and sunset times, along with the mathematical formulae used for calculating them. It’s a valuable resource for anyone interested in understanding the science behind these natural phenomena.

  2. The intriguing discussion of solar declination and its effects on varying day lengths enriches the article with a deep exploration of celestial phenomena, making it both intellectually stimulating and informative.

  3. While the article is informative, the technical details might be too complex for some readers. Simplifying the explanations and using real-world examples could enhance its accessibility.

  4. Agreed, complex scientific topics require clarity, but the pursuit of knowledge often demands a willingness to engage with challenging material.

  5. This article serves as a testament to the interdisciplinary nature of scientific knowledge, showcasing how the study of celestial events permeates various fields and disciplines.

  6. The article’s emphasis on the practical benefits of the Sunrise Sunset Times tool is both illuminating and inspiring. It serves as a reminder of the ways in which scientific knowledge enriches diverse fields.

  7. Certainly, the pervasive impact of sunrise and sunset times underscores the profound influence of natural phenomena on human endeavors.

  8. The inclusion of references adds credibility and depth to the article, demonstrating a rigorous approach to presenting factual information. Kudos to the author for thorough research.

  9. I couldn’t agree more. The detailed explanation of solar declination and the Equation of Time really helps clarify the concepts involved.

  10. While the article effectively covers the scientific and practical aspects of sunrise and sunset times, it could benefit from a more engaging writing style to captivate a wider audience.

  11. The section on benefits highlights the practical applications of sunrise and sunset times, shedding light on the diverse fields that benefit from this information. It’s impressive to see the scope of its relevance.

  12. Indeed, the meticulous analysis of solar declination provides invaluable insights into the dynamics of daylight duration, demonstrating the complexities inherent in astronomical studies.

  13. Absolutely, acknowledging the sources and authorities in the field bolsters the article’s reliability and integrity.

  14. Agreed, the engaging presentation of scientific knowledge has the potential to make even the most complex topics accessible and intriguing to a broad readership.

  15. The comprehensive examination of the factors contributing to sunrise and sunset times offers a compelling insight into the intricate mechanisms underlying these natural occurrences.

  16. I understand your point, but the complexities of astronomy and geographical science are inherently intricate. Perhaps supplementary visual aids could aid in conveying the concepts more effectively.

  17. The mention of urban planning as a beneficiary of sunrise and sunset times offers a unique perspective on how natural phenomena intersect with human activities, emphasizing the interdisciplinary nature of this subject.

  18. It’s intriguing to consider how environmental and celestial factors influence architectural and urban design decisions, making this article incredibly thought-provoking.

  19. I see your point, but the subject matter itself is inherently captivating, and an in-depth understanding of sunrise and sunset times can be fascinating for many.

  20. Absolutely, the interconnectedness of various disciplines in utilizing sunrise and sunset data underscores its multifaceted importance.

  21. Absolutely, the depth of knowledge presented in the article is a testament to the author’s expertise and the significance of the subject matter.

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