Abstract: A test using a virtual date and time is to be performed without restriction imposed, depending on the implementation status of another test using a virtual date and time. A control section 220 outputs a specified layer identifier and a date and time conversion instruction. Then, when the date and time conversion instruction has been outputted from the control section 220, a date and time conversion section 230 acquires the present date and time from a clock 210, then reads, from a layer storage section 100, conversion definition information corresponding to the layer identifier outputted from the control section 220, then by using the read-out conversion definition information, converts the present date and time acquired from the clock 210, and then outputs, to the control section 220, virtual date and time information indicating the date and time obtained by conversion.

Abstract: [Object] To provide a biodegradable polyester resin composition that can achieve excellent antistatic properties and surface lubricity while maintaining the molecular weight without deteriorating the appearance of the resin, even if a kneading method is employed. [Solving Means] A biodegradable polyester resin composition containing 0.05 to 10.0% by weight of a borate ester surfactant (a reactant of boric acid and a compound given by esterifying a polyol with a higher fatty acid, a salt of the reactant, a reactant obtained by reacting a higher fatty acid to a compound given by esterifying a polyol with boric acid, or the like) having one or more hydrophobic groups having 8 to 24 carbon atoms.