Long-term γ-ray LC for PKS 0346−27. For the majority of the time, the source was in the quiescent phase; it showed substantial flaring activity and a steady high flux state after December 2018. Upper panel: seven-day-binned LC between August 5, 2008 (MJD = 54 683) and January 19, 2023 (MJD = 59 598). The high flux state, marked with a light green patch (MJD = 58 480 to 59 598), is the period in which we searched for QPOs. Lower panel: one-day-binned Fermi-LAT LC in 0.1–300 GeV for the full domain of observation between MJD = 58 480 and 59 598. We superimpose the seven-day moving average on top of the LC to make the periodic modulation explicit. An oscillatory feature is clearly visible in the LC.