A $\text{200 mV}$ full-scale dual-slope analog to digital converter $\text{(DS-ADC)}$ has a reference voltage of $\text{100 mV}$. The first integration time is set as $\text{100 ms.}$ The $\text{DS-ADC}$ is operated in the continuous conversion mode. The conversion time of the $\text{DS-ADC}$ for an input voltage of $\text{123.4 mV (in ms, rounded off to one decimal place)}$ is _____.