Local reports say Zuma is determined to deliver his state of the union address on Thursday, 8 February and until then he is unlikely to agree to leave.
Top ANC leaders met President Jacob Zuma over the weekend and asked him to step down, while some opponents have taken to the streets calling for his resignation.
However, Mr Zuma still has his supporters within the ANC - including at least two of the top six - so nothing is definite.
On Monday, Zuma met Zulu King Goodwill Zwelithini, the influential traditional head of South Africa's biggest ethnic group in the president's home province of KwaZulu-Natal.
The ANC is yet to make an official announcement on the matter, but it has called for an urgent meeting with its national working committee to further deal with the matter.
High noon is Sona when, as now seems inevitable, Mr Zuma step up to address the national assembly for the last time.
In a fresh attempt to kick out President Jacob Zuma, 75, the embattled leader is gearing up for another no-confidence vote this month as splits within his own party threatens to undo him.
Mbete said when they informed Zuma of their decision, the president had told them that he was in the process of writing to them proposing the very same thing.
With just days to go, it is still not clear who gives the key-note State of the Union Address (Sona) to parliament tomorrow, which sets out the political and economic agenda for the next year.
Thanks to recent developments, we think prospects for structural reforms and the continuation of a sentiment-driven rally in South African assets have increased.
All of this is happening against the backdrop of nearly frenzied speculation about Mr Zuma's future. But it has the power to convene the national executive committee, which would be able to "recall" him, effectively forcing him to step down.
Setona was caught on camera on Monday kicking a woman while she was on the ground outside Luthuli House.
Another push for Zuma's removal comes from opposition parties, the DA and the EFF. The rand has been the best performer in the world against the dollar since his December 18 election as ANC leader, and was 0.6 percent stronger at 12.0513 per dollar at 3 p.m.in Johannesburg.