This article investigates marriage as a site for the historical study of time. Focusing on Hindu marriage in South Asia between the seventeenth and nineteenth centuries, the article studies (a) how the moment of a marriage is made and documented through what the article calls ‘temporal practices’, and (b) how, once this moment is made and documented, it is put to use in and for a marriage ceremony. The article has three sections. In the first section, it discusses the device used to measure the time of the marriage ceremony: the water clock. This section also addresses how the water clock was used, and who used it, within the marriage ceremony; and registers a shift in the nineteenth century from the water clock to the mechanical clock. In the second section, the article discusses documentary practices that record the moment of a marriage and addresses historical changes related to these practices in the nineteenth century. In the third section, the article examines the work that the moment of a marriage does once it has been brought into being and documented. This section argues that the moment of a marriage frames and makes efficacious a certain action through which the bride and groom are transformed. The article concludes by arguing that the moment of a marriage temporally regulates the activities of the marriage ceremony and explores how this moment reconfigures relations to the past and future for the bride and groom.