120s ke ngwagasome tšhupamabakeng ya Gregorian wa go thoma ka 1 Pherekgong 120 ya fela ka 31 Manthole 129. Ngwagasome 120s o wela ngwagengkgolo wa 2.
| Ngwagakete: | Ngwagakete 1 |
| Mengwagakgolo: | Ngwagakgolo 1 – Ngwagakgolo 2 – Ngwagakgolo 3 |
| Mengwagasome: | 90s 100s 110s – 120s – 130s 140s 150s |
| Mengwaga: | 120 121 122 123 124 125 126 127 128 129 |
| 120s-tšago tswalanya: |