···184184 case 'BOOLEAN':
185185 return Math.random() < 0.5;
186186 case 'DATETIME':
187187- return new Date().toLocaleTimeString();
187187+ return new Date().toISOString();
188188 case 'GEOHASH':
189189 // Geohashes are always 6 characters long, so we just hardcode this one
190190 // for example purposes. NB: not all 6 character strings are valid geohashes.