it doesn't say much, but out of curiosity here are last year's times for the first day in Valencia. Too much has changed - no ddd/tdd, different tyres, maybe KERS (or ballast?), so over a second is pretty much that outcome
http://www.f1technical.net/news/14099
Pos. Driver Car Best Difference Laps
1. F. Massa Ferrari F10 1:12.574 - 102
2. P. de la Rosa BMW Sauber C29 1:12.784 +0.210 74
3. M. Schumacher Mercedes GP W01 1:12.947 +0.373 40
4. N. Rosberg Mercedes GP W01 1:13.543 +0.969 39
5. G. Paffett McLaren MP4-25 1:13.846 +1.272 86
6. R. Barrichello Williams FW32 1:14.449 +1.875 75
7. S. Buemi Toro Rosso STR5 1:14.762 +2.188 18
8. R. Kubica Renault R30 1:15.000 +2.426 69