Daily data are monitored for a calendar day beginning at midnight and ending on the following midnight Central Standard Time (CST). NDAWN does not use Daylight Time (CDT), which occurs from the second Sunday of March to the first Sunday of November. To convert from CDT to CST, subtract one hour (e.g. 12:40pm CDT is 11:40am CST).
To learn more about the NDAWN data collection methods, click this link.