Sym454 -10000 -9000 -8000 -7000 -6000 -5000 -4000 -3000 -2000 -1100 -1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 440 450 460 470 480 490 500 510 520 530 540 600 700 800 900 1000 1100 2000 2026 January February March April May June July August September October November December -- starts at 0421-01-04