seven o'clock in the morning
In an incredibly short time the preparations were completed , a strain was put upon the tackle , and when night came the massive false-work had been pulled back into line and the traveler was once more swinging steel into place . It was a magnificent feat , yet not one of those concerned in it could feel confident that the work had not been done in vain ; for the time was growing terribly short , and , although the ice seemed solid , it was rotting fast . After the southern half of the span had been completed the warmth increased rapidly , therefore the steel crew lengthened its hours . The men worked from seven o'clock in the morning until eleven o'clock at night . On the 13th , without warning of any sort , Garfield Glacier began moving forward . It had lain inactive even during the midwinter thaw which had started its smaller brother , but that warm spell had evidently had its effect upon the giant , for now he shook off his lethargy and awoke . He stirred , gradually at first and without sound , as if bent upon surprising the interlopers ; then his speed increased .