§ 8. Official time.

The official time of the City of Baltimore shall conform to standard time based upon the time of the seventy-fifth meridian, except that, from two o'clock a.m. of the last Sunday in April until two o'clock a.m. of the last Sunday in September of each year, the official time throughout the City of Baltimore shall be advanced one hour, and all courts, public offices, legal and official proceedings, insofar as the same are subject to or under the control of the Mayor and City Council of Baltimore, shall be regulated thereby, and all time shown by the public clocks shall agree therewith. Provided, however, that the Mayor and City Council by ordinance passed not less than fifteen days before the change would become effective, may extend the period during which the one hour variation from standard time shall be effective in any year or years. The extension may be to change the advance in time up to two o'clock a.m. on the last Sunday in March, or back to two o'clock a.m. on the last Sunday in October, or both such changes, or any portion or portions of either. Any such extension may be provided only if other municipalities or sections of the United States shall have made such a change, and in the opinion of the Mayor and City Council thereby have caused inconvenience and annoyance to the commercial, economic, industrial or social affairs of the residents of Baltimore City.