in late September vs at late September

Some examples from the web:

• Subsequently, the Council arrived at a Common Position in late September 2002.
• Gaye was involved in encouraging violent protests and clashes in late September 2015 in what appears to have been a coup attempt to overthrow the Transitional Government.
• Ngaïkosset is one of the main perpetrators of the violence which erupted in Bangui in late September 2015.
• According to [the Minister], the question of protection... for Arco's members had already been raised in late September 2008 at the Egmont Palace, on the night of the first Dexia rescue.
• Reiterates the importance of achieving a fully liberalised EU energy market as soon as possible and insists on the Commission's presenting its package of additional measures for the internal market in late September 2007, as announced;
• In late September, 50 journalists were arrested because of their critical reporting on the ultra-nationalist Ergenekon secret society.
• In late September, the troika visited Pakistan, Iran, Saudi Arabia, Syria and Egypt, where it had in fact met the Arab League leaders.
• The finance heads of the 20 industrialized nations met again in late September of 2009 at the G-20 summit in Pittsburgh, PA.
• In late September the Commission will report on whether they have made sufficient efforts to reform their judiciaries and fight corruption.
• The report will be debated in plenary in late September and might form the political base for an intervention in the current budgetary procedure.
• The pre-distribution of euro banknotes to banks commenced in the first week of November 2007, while that of coins started over a month earlier in late September 2007.
• 39 around 1.8% at the beginning of January 2009, also much lower than its peak of 4.4% in late September 2008.
• whereas in this regard the signal given by the joint declaration by Russia, Ukraine, Belarus and Kazakhstan in late September 2003 on the formation of a Common Economic Space should be included in the considerations on the shape of the Wider Europe - Neighbourhood initiative,
• In late September 2009 some 400 monks and nuns were driven out of the Bat Nha Buddhist monastery is central Vietnam.
• In late September the European Commission (as "guardian of the treaties") will present its view on whether Bulgaria and Romania have met the criteria for EU accession.
• In late September 2014, an unknown number of unidentified fighters allegedly were prepared to attack diplomatic facilities in Sana'a, Yemen, upon receiving orders from Abd al-Khaliq al-Houthi.
• However, it wishes to strengthen data protection by referring to the framework decision due to be adopted at the plenary session in late September (Roure report).
• The krone remained stable in 2001 (see Chart 28), holding a level marginally stronger than its central rate of DKK 7.46038 for most of the year. Danmarks Nationalbank intervened in the markets in late September, purchasing foreign exchange to dampen an appreciation in the krone.

Some examples from the web:

• So if you don't want to do June, we're looking at late September, early October, now.
• Subsequently, the Council arrived at a Common Position in late September 2002.
• In late September the Commission will report on whether they have made sufficient efforts to reform their judiciaries and fight corruption.
• In late September, 50 journalists were arrested because of their critical reporting on the ultra-nationalist Ergenekon secret society.
• In late September 2009 some 400 monks and nuns were driven out of the Bat Nha Buddhist monastery is central Vietnam.
• The report will be debated in plenary in late September and might form the political base for an intervention in the current budgetary procedure.
• However, it wishes to strengthen data protection by referring to the framework decision due to be adopted at the plenary session in late September (Roure report).
• Much of the area is still underwater in the wake of the late September deluge.
• In the north, the livestock grazing period is shorter (from mid-May to late September), so more fodder has to be stored for the winter, which in turn drives up production costs.
• From late September 2001 until the end of the reference period, the krona appreciated by almost 8 % against the euro.
• The pre-distribution of euro banknotes to banks commenced in the first week of November 2007, while that of coins started over a month earlier in late September 2007.
• In late September the European Commission (as "guardian of the treaties") will present its view on whether Bulgaria and Romania have met the criteria for EU accession.
• In late September, the troika visited Pakistan, Iran, Saudi Arabia, Syria and Egypt, where it had in fact met the Arab League leaders.
• In Malta the frontloading of euro coins started in late September 2007, while the frontloading of euro banknotes began in late October.
• In Bangalore, a colleague there sent me information for three years, average, 24th of September, so late September.
• The krone remained stable in 2001 (see Chart 28), holding a level marginally stronger than its central rate of DKK 7.46038 for most of the year. Danmarks Nationalbank intervened in the markets in late September, purchasing foreign exchange to dampen an appreciation in the krone.
• According to [the Minister], the question of protection... for Arco's members had already been raised in late September 2008 at the Egmont Palace, on the night of the first Dexia rescue.
• As of late September 2010, Jim'ale established ZAAD, a mobile-to-mobile money-transfer business and struck a deal with Al-Shabaab to make money transfers more anonymous by eliminating the need to show identification.
• The finance heads of the 20 industrialized nations met again in late September of 2009 at the G-20 summit in Pittsburgh, PA.
• 39 around 1.8% at the beginning of January 2009, also much lower than its peak of 4.4% in late September 2008.