To DateTime

R2026b

Output DateTime signal

Since R2026b

• 

To DateTime block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simulink / DateTime

Description

The To DateTime block outputs a DateTime signal from a time point.

Examples

To DateTime Block

This example shows how the To DateTime block converts a numerical signal to a DateTime signal. The block's input is a constant signal with value 1788253200. The block's output is a signal containing the DateTime value 01-Sep-2026 09:00:00, which is 1788253200 seconds after the Unix epoch (01-Jan-1970 00:00:00).

model='ex_to_datetime_block';
load_system(model)
sim(model);
open_system(model)

Ports

Input

Port_1 — Input time point

scalar numeric

Input time, specified as a scalar numeric.

Dependencies

The data type for this input port must be the same as the data type specified in the Storage data type parameter.

Data Types: double | int32 | uint32 | fixed point

Output

Port_1 — Value of DateTime signal

scalar

Value of DateTime signal, returned as a scalar.

Parameters

To edit block parameters interactively, use the Property Inspector. From the Simulink^® Toolstrip, on the Simulation tab, in the Prepare gallery, select Property Inspector.

Output data type — Output data type

Simulink.DateTimeType() (default) | <data type expression>

Choose the data type for the output. The type can be specified directly as Simulink.DateTimeType() or expressed as a Simulink.DateTimeType data type object.

• Simulink.DateTimeType(Name,value)

• Simulink.DateTimeType(datetime type name)

Programmatic Use

To set the block parameter value programmatically, use the set_param function.

To get the block parameter value programmatically, use the get_param function.

Parameter:	OutDataTypeStr
Values:	Simulink.DateTimeType() (default) | <data type expression>

Mode — Data type mode

DateTime (default) | Expression

Select the category of data to specify.

• DateTime — Simulink.DateTimeType() data types.

• Expression — Expressions that evaluate to data types. Selecting Expression enables a second text box to the right, where you can enter the expression.

For more information, see Specify Data Types Using Data Type Assistant.

Time point — Time point mode

Seconds since Unix epoch (default) | Seconds since NTP epoch | Seconds since TAI epoch | Julian date | Modified Julian date | J2000.0 date

Select the time point:

• Seconds since Unix epoch

• Seconds since NTP epoch

• Seconds since TAI epoch

• Julian date

• Modified Julian date

• J2000.0 date

For more information on storage type constraints, see Simulink.DateTimeType.

For more information, see Specify Data Types Using Data Type Assistant.

Storage data type — DateTime storage data type

double (default) | int32 | uint32 | fixdt(0,64,32) | fixdt(1,64,32) | fixdt(0,128,64) | fixdt(1,128,64)

Select the DateTime storage data type:

• double

• int32

• uint32

• fixdt(0,64,32)

• fixdt(1,64,32)

• fixdt(0,128,64)

• fixdt(1,128,64)

For more information on storage type constraints, see Simulink.DateTimeType.

Dependencies

The data type for the Port_1 input port must be the same as the data type specified in the Storage data type parameter.

Time Standard — DateTime time standard

TAI (default) | UTC | TT

Select the DateTime time standard:

• TAI

• UTC

• TT

For more information on storage type constraints, see Simulink.DateTimeType.

Block Characteristics

Data Types	Boolean | bus | datetime | double | fixed point | integer
Direct Feedthrough	yes
Multidimensional Signals	no
Variable-Size Signals	no
Zero-Crossing Detection	no

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2026b