642
642, pê reqemanê Romayıcan nuştışê cı DCXLII beno.
| Gregoryen | 642 | |
| Ab Urbe | 1395 | |
| Teqwimê Ermeniyan | 91 ԹՎ ՂԱ | |
| Asuri | 5392 | |
| Teqwimo Bahai | -1202–-1201 | |
| Teqwimo Bengalki | 49 | |
| Teqwimê Berberan | 1592 | |
| [[Dewrname|]] | N/A | |
| Teqwimê Budistan | 1186 | |
| Teqwimê Myanmari | 4 | |
| Teqwimê Bizansi | 6150–6151 | |
| Teqwimo İbranki | 4402–4403 | |
| İran | 20–21 | |
| Teqwimo Hıcri | 21–22 | |
| Teqwimê Japonan | ||
| Teqwimê Korya | 2975 | |
| Teqwimê Minguo | 1270 before Çin 民前1270年 | |
| Thai solar | 1185 | |
