Time-zone

2025-ongoing

Cyanotype, paper, National Geographic world map (2019 edition)

“Time-zone” is based on an existing time zone map, using the cyanotype process to generate gradients of blue according to different levels of exposure and to visualize time zones and their boundaries. Although time zones are conceptually based on 15-degree divisions of longitude and the mean solar time of each zone, in practice they are shaped by borders, geography, governance, transportation, and histories of colonial rule. Their boundaries bend in complex ways, and even places located on the same longitude may be assigned different times. By overlaying the historical and political background embedded in the map with the varying densities of blue produced through exposure, the work seeks to reveal the structures embedded in the modern system of standardized time through these discrepancies.

Using a National Geographic time zone map published in 2019, the series takes longitude 0° passing through Greenwich (the Prime Meridian) as its point of departure. To date, twelve variations have been produced by shifting the center of exposure.