The phrase "almost one week" is correct and usable in written English.
It can be used to indicate a duration of time that is close to, but not quite, a full week.
Example: "The project is due in almost one week, so we need to finalize our plans soon."
Alternatives: "nearly a week" or "about a week".
"In no way is this fire under control," Rachel Notley, the premier of Alberta, said on Saturday, almost one week after the fire first ignited in a remote forested area of the province.
The testing experiment in the field goes on uninterruptedly for almost one week; the target experimental mine is 3.5 km deep; the viscosity of mud is 10 m Pa·s; the experiment starts its directional measurement from 2 km.
Sunday's announcement comes almost one week after the ambulance service was stretched to its limits responding to a mass thunderstorm asthma event across Melbourne and surrounding areas, tackling an unprecedented 1,900 emergency calls in five hours.
The 19 February publication date would have granted central bankers almost one week's reprieve.
Almost one week later I began having a new symptom -- chest heaviness.
The campaign arrives almost one week after activists applying for demonstration permits allowing them to legally demonstrate against the upcoming summits called the requirements outlined in Emanuel's ordinances "ridiculously burdensome" for protesters.
Although the majority of reported flares lasted less than 24 hours, almost one quarter of flares lasted about one week.
And she made many, many films, sometimes almost one a week.
"After 21 increases, almost one a week for the last year, we didn't see any after July 4," said Rick Seaney, whose booking site, Farecompare.com, closely tracks airfares.
Police figures show Bangka miners died in accidents similar to Rosnan's at an average of almost one a week last year, more than double the rate from 2010.
In Romania, Lidl has opened more than 185 stores since 2011 – an average of almost one a week for four years.
