- Gregorian calendar
- 2019, MMXIX
- Armenian calendar
- 1468, ԹՎ ՌՆԿԸ
- Bah calendar
- 175–176
- Balinese saka calendar
- 1940–1941
- Bengali calendar
- 1425–1426
- British regnal year
- 67 Eliz. 2 – 68 Eliz. 2
- Byzantine calendar
- 7527–7528
- Chinese calendar
- 戊戌 年 (Earth Dog ), 4716 or 4509, — to — , 己亥年 (Earth Pig ), 4717 or 4510
- Coptic calendar
- 1735–1736
- Ethiopian calendar
- 2011–2012
- Hebrew calendar
- 5779–5780
- Vikram samvat
- 2075–2076
- Shaka samvat
- 1940–1941
- Kali yuga
- 5119–5120
- Igbo calendar
- 1019–1020
- Iranian calendar
- 1397–1398
- Islamic calendar
- 1440–1441
- Japanese calendar
- Heisei 31 / Reiwa 1, (令和元年)