A DESI universe with time-dependent dark energy is 119 Myr younger than a LambdaCDM universe

On the basis of their redshift and Lyman-alpha measurements, the Dark Energy Spectroscopic Instrument (DESI) collaboration suggest that dark energy varies with the scale factor $a$ as ${\rho }_{de}(a)=a^{-3(1+w_0+w_a)}{e}^{-3w_a(1-a)}{\rho }_{de,0}$ in which $w_0=-0.752\pm 0.057$ and $w_a=-0.86_{-0.20}^{+0.23}$. Such a DESI universe is 119 Myr younger than the LambdaCDM universe.