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World Hydrography Day

๐Ÿ“… Sunday, June 21, 2026 at 00:00:00 UTC
โฑ๏ธ Duration: 1 day -- World Hydrography Day Ends at 00:00:00 (UTC)
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World Hydrography Day starts
00:00:00
Sunday, 21 June 2026
Duration: 1 day View All Events >
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What is World Hydrography Day?

World Hydrography Day (international)

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About World Hydrography Day

World Hydrography Day is celebrated annually on June 21 to raise awareness about the importance of hydrography in our daily lives and the role it plays in ensuring safe navigation and sustainable development of marine resources. This observance highlights the significance of accurate and up-to-date hydrographic data for maritime safety, environmental protection, and economic development.

The day was established by the International Hydrographic Organization (IHO) in 2005, aiming to promote the profession of hydrography and the work of hydrographic offices worldwide. Each year, a specific theme is chosen to focus discussions and activities, encouraging collaboration among nations and stakeholders in the maritime community.

Hydrography is essential for various applications, including navigation, marine spatial planning, and the management of marine resources. By observing World Hydrography Day, organizations and individuals are encouraged to engage in activities that promote the importance of hydrographic surveys and data collection.

This observance serves as a reminder of the need for continued investment in hydrographic services and the importance of international cooperation in sharing hydrographic information. It is an opportunity for professionals in the field to showcase their work and for the public to learn more about the significance of hydrography in our interconnected world.

Key facts
First held
2005
Frequency
Annual
Observed on
June 21

Frequently asked questions about World Hydrography Day.

World Hydrography Day is on June 21 each year.

The day aims to raise awareness about the importance of hydrography for safe navigation and sustainable development.

It was established by the International Hydrographic Organization (IHO) in 2005.

It is celebrated with various activities, discussions, and events focusing on hydrography and its significance.

Each year, a specific theme is selected to guide discussions and activities related to hydrography.
Tags: world hydrography day observance international

World Hydrography Day start times in other key cities:

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Abiyรกn Sun 00:00:00
Addis Abeba Sun 00:00:00
Ahmedabad Sun 00:00:00
Alejandrรญa Sun 00:00:00
Ankara Sun 00:00:00
Bagdad Sun 00:00:00
Bangalore Sun 00:00:00
Bangkok Sun 00:00:00
Bogotรก Sun 00:00:00
Bombay Sun 00:00:00
Cantรณn Sun 00:00:00
Chongqing Sun 00:00:00
Ciudad de Ho Chi Minh Sun 00:00:00
Ciudad de Mรฉxico Sun 00:00:00
Ciudad del Cabo Sun 00:00:00
Daca Sun 00:00:00
Dar es Salaam Sun 00:00:00
El Cairo Sun 00:00:00
Estambul Sun 00:00:00
Hanoi Sun 00:00:00
Hong Kong Sun 00:00:00
Jartum Sun 00:00:00
Johannesburgo Sun 00:00:00
Kano Sun 00:00:00
Karachi Sun 00:00:00
Kinshasa Sun 00:00:00
Lagos Sun 00:00:00
Lahore Sun 00:00:00
Lima Sun 00:00:00
Londres Sun 00:00:00
Luanda Sun 00:00:00
Melbourne Sun 00:00:00
Moscรบ Sun 00:00:00
Nueva Delhi Sun 00:00:00
Nueva York Sun 00:00:00
Pekรญn Sun 00:00:00
Riad Sun 00:00:00
Rรญo de Janeiro Sun 00:00:00
San Pablo Sun 00:00:00
San Petersburgo Sun 00:00:00
Santiago Sun 00:00:00
Seรบl Sun 00:00:00
Shanghรกi Sun 00:00:00
Shenzhen Sun 00:00:00
Singapur Sun 00:00:00
Sรญdney Sun 00:00:00
Teherรกn Sun 00:00:00
Tokio Sun 00:00:00
Yakarta Sun 00:00:00

World Hydrography Day start times in different countries: