Wall Street gained, erasing earlier losses, after US Federal Reserve policy makers flagged that they expect interest rates to rise at a slower pace when increases begin.
"Consistent with its previous statement, the Committee judges that an increase in the target range for the federal funds rate remains unlikely at the April FOMC meeting," the Federal Open Market Committee said in a statement.
"The Committee anticipates that it will be appropriate to raise the target range for the federal funds rate when it has seen further improvement in the labour market and is reasonably confident that inflation will move back to its 2 percent objective over the medium term."
The Fed removed its reference to staying "patient" when it came to lifting its benchmark interest rate. The central bank's updated economic and rate forecasts show policymakers see the economy at a more moderate rate than previously.
"Just because we removed the word patient from the statement doesn't mean we are going to be impatient," Chair Janet Yellen said in a press conference Wednesday in Washington.
In afternoon trading on Wall Street, the Dow Jones Industrial Average gained 0.81 percent, while the Standard & Poor's 500 Index rose 0.87 percent, and the Nasdaq Composite Index added 0.79 percent.
Treasuries also rose, pushing yields on 10-year notes nine basis points lower to 1.96 percent.
"This was largely what was expected, though some may have been fearing a more hawkish Fed, and that explains the rally we're seeing right now, that it didn't state a precise time for raising rates," John Carey, portfolio manager at Pioneer Investment Management in Boston, told Reuters.
Fed policymakers remain cautious.
"The Committee currently anticipates that, even after employment and inflation are near mandate-consistent levels, economic conditions may, for some time, warrant keeping the target federal funds rate below levels the Committee views as normal in the longer run," the Fed said.
In its latest forecasts, the Fed lowered its range for its GDP growth prediction for 2015 to between 2.3 percent and 2.7 percent, down from its December estimate for between 2.6 percent and 3.0 percent, and downgraded its estimates for 2016 and 2017 growth as well.
However, it also decreased its estimate for unemployment rates, now forecasting a rate of between 5.0 percent and 5.2 percent for 2015, down from its December estimate for between 5.2 percent and 5.3 percent. It also lowered its forecast for the median for the federal funds rate at the end of 2015 to 0.625 percent compared with 1.125 percent in December.
Gains in shares of Chevron and those of Microsoft, last up 2.8 percent and 2.3 percent respectively, led the Dow higher. Shares of Exxon Mobil also increased, last up 2.2 percent.
In Europe, the Stoxx 600 Index ended the day with a 0.3 percent gain from the previous close. France's CAC 40 Index inched 0.1 percent higher. Germany's DAX fell 0.5 percent.
The UK's FTSE 100 Index jumped 1.6 percent after Chancellor of the Exchequer George Osborne upgraded the country's economic growth forecast. Osborne predicted the UK economy will expand 2.5 percent this year and 2.3 percent in 2016, up from December forecasts for 2.4 percent and 2.2 percent respectively.
Meanwhile Greek stocks and bonds dropped amid intensifying concern about the country's ability to satisfy its international lenders. Greece's ASE Index dropped 4.1 percent, while yields on Greek three-year notes soared 171 basis points to 22.14 percent, and yields on the nation's 10-year bonds jumped 46 basis points to 11.27 percent.
International Monetary Fund officials told their euro-area colleagues that Greece is the most unhelpful country the organisation has dealt with in its 70-year history, Bloomberg reported citing two unidentified people familiar with the talks.