This paper gave the results of recent time determinations made at the U.S. Naval Observatory with two instruments and the comparisons by means of wireless signals of the time determinations made at different national observatories during the past two years.The two instruments were the 6‐inch transit circle and a portable transit of 3‐inch aperture made by Prin of Paris, each instrument being equipped with an impersonal micrometer. The same stars were observed each night on both instruments and the transits were recorded on the same chronograph so that the comparison was not affected by any errors in the star places nor by any lag of rel