qiskit-documentation/docs/api/qiskit/0.31/qiskit.pulse.builder.align_...

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---
title: align_right (v0.31)
description: API reference for qiskit.pulse.builder.align_right in qiskit v0.31
in_page_toc_min_heading_level: 1
python_api_type: function
python_api_name: qiskit.pulse.builder.align_right
---
<span id="qiskit-pulse-builder-align-right" />
# qiskit.pulse.builder.align\_right
<Function id="qiskit.pulse.builder.align_right" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.18/qiskit/pulse/builder.py" signature="align_right()">
Right alignment pulse scheduling context.
Pulse instructions within this context are scheduled as late as possible by shifting them right to the latest available time.
Examples:
```python
from qiskit import pulse
d0 = pulse.DriveChannel(0)
d1 = pulse.DriveChannel(1)
with pulse.build() as pulse_prog:
with pulse.align_right():
# this pulse will start at t=0
pulse.play(pulse.Constant(100, 1.0), d0)
# this pulse will start at t=80
pulse.play(pulse.Constant(20, 1.0), d1)
pulse_prog = pulse.transforms.block_to_schedule(pulse_prog)
assert pulse_prog.ch_stop_time(d0) == pulse_prog.ch_stop_time(d1)
```
**Yields**
None
**Return type**
`AlignmentKind`
</Function>