Japan is at least 13 hours ahead of the United States (hence, things are now happening there on Friday morning) and when you see microsieverts in a story, divide by 10 to get the equivalent number in millirem. From NHK World Service (Japan’s international television outlet):
In a news conference early Friday, Tokyo Electric Power Company says the radiation levels at the west gate of the power plant was down by nearly 20 points to 292 microsieverts per hour at 8.40 PM on Thursday.
The figures follow an hour-long operation by police and Self-Defense Forces to inject water from pump trucks into the No. 3 reactor building. It's possible the level of pool water used for cooling nuclear fuel was reduced.
At 11 PM the radiation level dropped again to 289 microsieverts per hour.