Hourglass is a mode available in the game HOURS. It was added on the 17th of March, 2021, and aims as a timer to record speedruns. This mode has 2 separate options; Tempo affects time, and Tempo does not affect time. The mode adds a timer above the player's HP bar that is colored teal if time is stopped with “Tempo affects time” on and is white if otherwise. It will also turn red if the cheat menu is used. There are no additional rewards for winning with this mode. It's main purpose is for the speedrunning channel (#Hourglass) in the Discord.
When winning with the Hourglass mode, a timer will show next to the mode in the main menu with your fastest time.
Some world records can be found on this page.