Ante meridiem is commonly denoted as AM, am, a.m., or A.M.; post meridiem is usually abbreviated PM, pm, p.m., or P.M. Like many other sources, timeanddate.com uses “am” and “pm” when using the 12-hour format, but the other variants are equally correct and widely used.

Find the exact time difference with the Time Zone Converter – Time Difference Calculator which converts the time difference between places and time zones all over the world.

United States time now. USA time zones and time zone map with current time in each state.

Current local time in USA – Illinois – Chicago. Get Chicago's weather and area codes, time zone and DST. Explore Chicago's sunrise and sunset, moonrise and moons

Clock Calculator: Add Time or Subtract Time. Enter a date and time, then add or subtract any number of months, days, hours, or seconds.

Create a Countdown Timer that counts down in seconds, minutes, hours and days to any date, with time zone support.

The Duration Calculator calculates the number of days, months and years between two dates.

Sky map showing the night sky tonight from any location. What planets are visible tonight? Where is Mars, Saturn or Venus?

Current local time in Mexico – Ciudad de México – Mexico City. Get Mexico City's weather and area codes, time zone and DST.

The timeanddate.com Time Zone Map gives an overview of current local times around the world. It takes into account daylight saving time (DST) changes worldwide.