दीर्घाः कार्यगुरुत्वाद्वा वर्षावासः परत्र च ॥ कZ_०९.१.५२च्द् ॥
dīrghāḥ kāryagurutvād vā varṣāvāsaḥ paratra ca
Longer stages (or longer halts) may be adopted due to the weight of the task; and there may also be a monsoon-stay elsewhere.
Operational necessity and seasonality: heavy tasks and monsoon conditions justify longer halts or longer stages.