Also boosting investor sentiments were comments from China that the Washington and Beijing held discussions on trade overnight and would talk again the next two weeks.
Asian shares were mostly higher Wednesday after the US said it would hold off on tariffs of Chinese imports of mobile phones, toys and several other items typically on holiday shopping lists.
Japan's Nikkei 225 added 1.2 percent in early trading to 20,691.10, while Australia's S&P/ASX 200 rose 0.5 percent to 6,598.50.
South Korea's Kospi gained 1.3 percent to 1,951.33. Hong Kong's Hang Seng rose 1.3 percent to 25,618.67.
The Shanghai Composite edged up 0.9 percent to 2,822.30.
Also boosting investor sentiments were comments from China that the two sides held discussions on trade overnight and would talk again the next two weeks.
The benchmark S&P 500 snapped a two-day losing streak and rose 42.57 points, or 1.5 percent, to 2,926.32. It had been up as much as 2.1percent.
The Dow Jones Industrial Average gained 372.54 points, or 1.4 percent, to 26,279.91. The average briefly climbed 519 points.
The Nasdaq composite jumped 152.95 points, or 1.9 percent, to 8,016.36.
The Russell 2000 index of smaller company stocks rose 16.30 points, or 1.1 percent, to 1,510.58.
The markets have been in the spin cycle since President Donald Trump announced on August 1 that he would impose 10 percent tariffs on about $300 billion in Chinese imports, which would be on top of 25 percent tariffs already in place on $250 billion of imports.
The threat dashed hopes that a resolution may come soon in the trade war between the world's two largest economies, and investors have grown increasingly concerned that it may drag on through the US elections in 2020.
On Tuesday, The Office of the US Trade Representative said it would delay the tariffs on some products, including popular consumer goods, until December 15.
A few other products were removed altogether, including certain types of fish and baby seats.
But some analysts were cautious.
"Markets are responding with muted relief to the latest round in the trade saga - but nothing has really changed," said Robert Carnell, chief economist head of research, Asia-Pacific, at ING.
Energy and currencies
Benchmark US crude fell 48 cents to $56.62 a barrel. It rose $2.17, or 4 percent, to $57.10 per barrel Tuesday. Brent crude, the international standard, fell 37 cents $60.93.
The dollar rose to 106.42 Japanese yen from 105.16 yen. The euro weakened to $1.1176 from $1.1217.