Fish fillets at -1 °C are being frozen in Individual Quick Freezing (IQF) system using air at -40 °C. The product has a characteristic dimension of 10 cm with a density of 1200 kg.m⁻³. Thermal conductivity of the product is 2.5 W.m⁻².K⁻¹, the convective heat transfer coefficient is 100 W.m⁻².K⁻¹, and the latent heat of fusion is 300 kJ.kg⁻¹. If the fillet is considered as an infinite plate, the freezing time, in minutes, is _______. (Rounded off to 2 decimal places)