 The study investigates the size of discrete-time crystals that can be created for a Bose-Einstein condensate bouncing resonantly on an oscillating mirror, finding that big-time crystals with sizes in the range s almost equal to 20 to 100 are easier to realize experimentally than a period doubling, s equals 2, time crystal. The study also discusses the effects of using a soft Gaussian potential mirror for the bouncing BEC and present an experimental protocol for realizing big-time crystals, providing a flexible platform for investigating non-trivial condensed matter phenomena in the time domain. This article was authored by Christoph Gehjul, Tien Tran, Aliza here, and others.