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Suchyta, F. Andrade-Oliveira, G. F. Lewis, G. Giannini, G. Tarle, H. T. Diehl, I. Ferrero, J. Asorey, J. Carretero, J. De Vicente, J. Frieman, J. Garc\\'ia-Bellido, J. Lee, J. L. Marshall, J. Mena-Fern\\'andez, J. Myles, K. Glazebrook, K. Honscheid, K. Kuehn, L. Galbany, L. N. da Costa, M. Aguena, M. E. S. Pereira, M. Lima, M. Sako, M. Schubnell, M. Smith, M. Sullivan, M. Vincenzi, N. Weaverdyck (for the DES Collaboration), O. Lahav, P. Shah, P. Wiseman, R. A. Gruendl, R. C. Nichol, R. Kessler, R. L. C. Ogando, R. Miquel, R. M. T. White, S. Allam, S. Bocquet, S. Desai, S. Everett, S. Lee, S. R. Hinton, T. M. C. Abbott, T. M. Davis","submitted_at":"2024-06-07T16:19:01Z","abstract_excerpt":"We present a precise measurement of cosmological time dilation using the light curves of 1504 type Ia supernovae from the Dark Energy Survey spanning a redshift range $0.1\\lesssim z\\lesssim 1.2$. 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