GMB union general secretary Paul Kenny and Ed Miliband are due to meet tomorrow in a meeting planned before today's decision to cut funding to Labour by £1 million.
A union source said its was made out of sorrow rather than in anger.
However, according to ITV News political correspondent Carl Dinnen, there are those in the Labour Party who thought it was a deliberate snub ahead of tomorrow's meeting:
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Clocks will go forward 30 minutes so there is half an hour more daylight in the evening when energy consumption peaks.