Chronobot

• WWizards of the Coast2019-11-12
  Official Ruling
  If Chronobot enters the battlefield during an upkeep step, its effect doesn’t affect that upkeep step. Similarly, if Chronobot leaves the battlefield during an upkeep step, its effect doesn’t expire until the upkeep step is over.
• WWizards of the Coast2019-11-12
  Official Ruling
  While it’s your upkeep during your opponent’s turn, you’re the active player. However, any rules or effects that check whose turn it is will still know that it’s your opponent’s turn.
• WWizards of the Coast2019-11-12
  Official Ruling
  Untapping your permanents occurs in the untap step, and drawing a card occurs in the draw step. Neither of these are affected by Chronobot’s theft of time.

Rulings via Scryfall