Unclear / misleading time axis for Omicron plots

The plot https://logbook.virgo-gw.eu/virgo/uploads/66945_1749540006_20250607_glitches_rate.png covers the GPS range from 04 Jun 2025 15:00:00 UTC to 10 Jun 2025 06:00:00 UTC (the command to generate it was omicron-plot channel=V1:Hrec_hoft_16384Hz gps-start=1433084418 gps-end=1433570418 plot-star=0 style=STANDARD). But this is not obvious from the x (time) axis, as one would expect that the ticks / vertical lines are displayed at midnight: this is not the case for that plot. Adding the hour in addition to the day and/or enforcing vertical separations when days change would improve the readability of the Omicron plots.

Although having an automated time-axis formatting that works for "all" GPS ranges (from minutes to days if not weeks) is likely to be challenging!