Timeball

Where and when.

• 1984

  Date precision

  Year only

  Platform

  Texas Instruments TI-99/4A

• 1987

  Date precision

  Year only

• 1990

  Date precision

  Year only

  Platform

  NEC PC-9800 series

• 1990 · TurboGrafx-16 · USA^*

  Release date

  1990^*

  Date precision

  Year only^*

  Platform

  TurboGrafx-16^*

  Market

  USA^*

• 1990-02-23 · TurboGrafx-16^*

  Release date

  1990-02-23^*

  Date precision

  Exact date^*

  Platform

  TurboGrafx-16^*