660s
660s ke ngwagasome tšhupamabakeng ya Gregorian wa go thoma ka 1 Pherekgong 660 ya fela ka 31 Manthole 669. Ngwagasome 660s o wela ngwagengkgolo wa 7.
| Ngwagakete: | Ngwagakete 1 |
| Mengwagakgolo: | Ngwagakgolo 6 – Ngwagakgolo 7 – Ngwagakgolo 8 |
| Mengwagasome: | 630s 640s 650s – 660s – 670s 680s 690s |
| Mengwaga: | 660 661 662 663 664 665 666 667 668 669 |
| 660s-tšago tswalanya: |