Solargraphs are very long exposure pinhole photographs, these examples vary in duration from one day to one year, and they record the physical movement of the earth in the form of sun-trails - arcs of light across the sky. I inevitably use this process to mark time, especially that spanning between solstices and equinoxes, but also my personal experience of ordinary weeks and days in between.
37 Days. 28.2.24 - 4.4.24
Norfolk, two day exposure, July 2023
The whole of 2021, as viewed from my back garden
Spring Equinox to Summer Solstice 2021
Spring Equinox to Summer Solstice 2021
Spring Equinox to May Day 2021
Winter Solstice 2011 to Spring Equinox 2012