2022 or 2023 might need to SUBTRACT a leap second because the whole Earth's rotation has mysteriously sped up about a millisecond. Since the definition of the y

2022 or 2023 might need to SUBTRACT a leap second because the whole Earth's rotation has mysteriously sped up about a millisecond. Since the definition of the year switched to atomic seconds some years ago, they previously had needed to ADD leap seconds to sync to the astronomical year. Earthquakes, weather, ocean circulation can change length of day. Perhaps the core rotation changes may be affecting the whole Earth too.