Because Earth's solar day is now slightly longer than it was during the 19th century due to tidal deceleration, each day varies between 0 and 2 SI ms longer.
Karena periode hari Matahari Bumi saat ini lebih panjang dari periode ketika abad ke-19 akibat akselerasi pasang surut, setiap hari bervariasi antara 0 hingga 2 SI ms lebih panjang.