Symbol 5416 from IEC 60417 - Title/Meaning: Remaining time display; processing Function/description: [To identify a display, or the control for the display, of the remaining time until the end of an operation (such as cooking, washing, recording, etc.). On biometric systems, to indicate the need for more time to process.]
Additional information: 
See also symbol 5415
In IEC 62477-2 (TC 22),IEC 62477-2 Ed.1: Safety requirements for power electronic converter systems and equipment - Part 2: power electronic converters from 1000 V a.c. or 1500 V d.c. up to 36 kV a.c. or 54 kV d.c., this graphical symbol is used with the following meaning:;""energy storage timed discharge (time to be indicated adjacent to the symbol)""
Published in: Amendment 1, 2000;3C/401/FDIS;3C/351/CDV;3C/334/CD;3C/304/NP
Own work using: iso.org/obp/graphics/grs/07553409-1ed4-4e83-a3de-f48ad3e6a8c8 200.png
Vectorization:  Mrmw