A pulse-time history of PSR B0540-69 is reported, based on the analysis of an extended data set including ASCA, BeppoSAX and RXTE observations spanning a time interval of about 8 years. This interval includes also the epoch of the glitch episode reported by Zhang et al. (2001ApJ...554L.177Z). The log of all observations include: RXTE observations between 1996-03-08 and 2001-03-14: data from PCA only, accumulated in "Good Xenon" telemetry mode, time-tagged with a 1us accuracy; ASCA observations between 1993-06-13 and 1999-11-03: data from GIS Beppo-SAX observations between 1996-10-26 and 2000-02-19: data from MECS