Hi @theToncheff!
Here’s how I just did it:
if(!pm.variables.has('time')){
pm.variables.set('time',moment());
}
var time = moment(pm.variables.get('time'));
console.log('Time: ' + time.format());
time.add(15,'minutes');
console.log('Time + 15: ' + time.format());
pm.variables.set('time',time);
You could easily change pm.variables.<method>
to pm.environment.<method>
if you want.